Bark beetle A bark beetle is one of approximately 220 genera with 6,000 species of beetles in the subfamily Scolytinae in the weevil family Curculionidae. They are known for their ability to bore into the vascular cambium layer of trees to lay eggs and reproduce. Some species, such as the mountain pine beetle, attack and kill live trees.
	Barkley Barkley, originally named Woof-Woof, was a dog character on the children's television program Sesame Street. Barkley seems to be an Old English Sheepdog. Introduced in the less-than-successful A Special Sesame Street Christmas, its original actor Toby Towson notes that Barkley was originally intended to be an acrobatics ape.
	Barley Barley is a major food and animal feed crop, a member of the grass family Poaceae. In 2005, barley ranked fourth in quantity produced and in area of cultivation of cereal crops in the world . Its germination time is anywhere from 1-3 days.
	Barn A barn is an agricultural building used for storage and as a covered workplace. It may sometimes be used to house animal or to store farming vehicles and equipment. Barns are most commonly found on a farm or former farm. Older barns were usually built from lumber sawed from timber on the farm, although stone barns were sometimes built in New England and other areas where stone was a cheaper building material.
	Barn doors Barn doors, or colloquially a set of barn doors, are an attachment fitted to the front of a Fresnel lantern, a type of Spotlight used in films, television, and theatres. The attachment has the appearance of a large set of barn doors, but in fact there are four leaves, two larger and widening on the outside, two smaller and getting narrower towards the outside.
	Barn Owl The Barn Owl or, to distinguish it from relatives, Common Barn Owl, is an owl in the Tytonidae Family Tytonidae. This is one of the two groups of owls, the other being the typical owls Strigidae. These are pale, long-winged, long-legged owls, 33-39 cm in length with an 80-95 cm wingspan.
	Barn Swallow The Barn Swallow is a small bird migration perching bird bird found in Europe, Asia, Africa and the Americas. It has a long, deeply forked tail and curved, pointed wings. It is often just called Swallow in Europe, although the term 'swallow' refers more widely to various members of the family swallow.
	Barnacle A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacea and is hence distantly related to crabs and lobsters. Some authorities regard Cirripedia as a full class or Subclass, and the orders listed at right are sometimes treated as superorders.
	Barnacle Goose The Barnacle Goose belongs to the genus Branta of black goose, which contains species with largely black plumage, distinguishing them from the grey Anser species. Despite its superficial outward similarity to the Brent Goose, genetic analysis has shown it is an eastern deriative of the Cackling Goose lineage.
	Barney Oldfield Bern "Barney" Eli Oldfield was an automobile racer and pioneer. He was born on a farm on the outskirts of Wauseon, Ohio. He was the first man to drive car at 60 miles per hour. His accomplishments led to the expression "Who do you think you are? Barney Oldfield?"
	Barnstorm Barnstorm is the first solo album by Joe Walsh, released in 1972. With this album, Walsh moved away form the hard rock of the James Gang and explored a more acoustic sound influenced by such artists as James Taylor and Crosby,Stills & Nash. Taking a cue from The Who's Pete Tonwshend, Walsh utilized the ARP Odessey synthesier to great effect on such songs as Mother Says and the leadoff track Here We Go.
	Barograph A barograph is a recording aneroid barometer. It produces a paper or foil chart called a barogram that records the barometric pressure over time. Barographs use one or more aneroid cells acting through a gear or lever train to drive a recording arm that has at its extreme end either a scribe or a pen.
	Barometer A barometer is an instrument used to measure atmospheric pressure.
	Baronet A baronet or his female equivalent, a baronetess, is the holder of a hereditary title awarded by the British Crown, known as a baronetcy. The practice of awarding baronetcies was introduced by James I of England in 1611 in order to raise funds. Baronetcies have no European equivalent, though hereditary knights, such as the German and Austrian ' and the Dutch ', may be held to be similar.
	Baroque In the the arts, Baroque is both a period and the style that dominated it. The Baroque style used exaggerated motion and clear, easily interpreted detail to produce drama, tension, exuberance, and grandeur in sculpture, painting, literature, and music. The style started around 1600 in Rome, Italy and spread to most of Europe.
	Barque A barc is a type of sailing vessel.
	Barracks Barracks are a type of military housing. It is typically very plain and all of the buildings in the housing unit are often uniform structures. The term can also be used to describe the building(s) in which convicts are housed. The Oxford English Dictionary suggests that the term 'Barrack' is derived from the French 'baraque' or Italian 'barraca' and originally meant a temporary hut or cabin.
	Barracuda Barracudas are ray-finned fishes notable for their large size and fearsome appearance. The body is long, fairly compressed, and covered with small, smooth scale. They are found in tropical and subtropical oceans worldwide. Their genus Sphyraena is the only genus in the family Sphyraenidae.
	Barrage balloon A barrage balloon is a large balloon used as a defense against aircraft. The balloon is attached to the ground with metal cables, which are intended to ensnare the aircraft's propellers and otherwise cause damage to it on collision. Some versions carried small explosive charges that would be pulled up against the aircraft to ensure its destruction.
	Barramundi The barramundi is a species of fish migration fish in family Latidae of order Perciformes. It ranges from Torres Straits to New Guinea and northern and eastern Australia. Barramundi are usually a pale grey-green with a coppery shimmer, and can grow to a maximum length of 2 metre, weighing up to 60 kilogram; specimens weighing 5–6 kg are more commonly seen, however.
	Barranquilla Barranquilla, an Industrial, Portuary, and Special District, is a city and municipality located in northern Colombia. Capital of the Atlantico Department, it is the largest industrial city and port on the Caribbean Region and the fourth largest city of Colombia.
	Barred Owl The Barred Owl, Strix varia, is a large typical owl. It goes by many other names, including eight hooter, rain owl, wood owl, and striped owl, but is probably known best as the hoot owl. Its breeding habitat is dense woods across Canada, the eastern United States and south to Central America.
	Barrel A barrel or cask is a hollow Cylinder container, traditionally made of wood staves and bound with iron hoops. Someone who makes such barrels is known as a Cooper. Contemporary barrels are also made in aluminium and plastic. Barrels often have a convex shape, bulging at the middle.
	Barrel cactus A Barrel cactus is a type of cactus characterized by being approximately barrel-shaped. Barrel cacti are classified into the two genera Echinocactus and Ferocactus. Their pineapple-shaped fruit can be easily removed and tastes a bit like lemon. It may reach over a meter in height.
	Barrel organ A barrel organ is a mechanical musical instrument made of a series of organ pipe, and bellows, like any other traditional Organ, and of a cylinder studded with staples or bridges or pins corresponding in their placement to a particular tune. While the cylinders are called barrels, they are usually much smaller than the Barrel used as storage containers for several centuries.
	Barrel vault *Real Monasterio de Nuestra Senora de Rueda, cloisters of this Spanish 12th century monastery
	Barrette A barrette is a clasp or pin for holding hair in place, usually a woman's. Barretes are worn according to size, with small ones at the front and large ones in the back. They are used to keep hair out of the eyes but can also be just ornamental. This picture depicts merely one type of barrette.
	Barricade A barricade is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction. As a military term, the barricade denotes any improvised field fortification, most notably on the city streets during urban warfare.
	Barrie Barrie may also refer to: * Barrie, Ontario. * Barrie, a Canadian electoral district * BarrieSimcoeBradford, former Canadian electoral district * Little Barrie, a British band
	Barrister A barrister is a lawyer found in many common law jurisdiction who principally, but not exclusively, represents litigants as their advocate before the courts of that jurisdiction. In this regard, the profession of barrister corresponds to that part of the role of legal professionals found in the Civil law jurisdictions relating to appearing in Trial or pleading cases before the courts.
	Barrow's Goldeneye The Barrow's Goldeneye is a medium-sized sea duck of the genus Bucephala, the goldeneyes. Adults are similar in appearance to the Common Goldeneye. Adult males have a dark head with a purplish gloss and a white crescent at the front of the face. Adult females have a yellow bill.
	Bartholomew Roberts Bartholomew Roberts born John Robert, also known as Black Bart, was one of the most notorious and successful pirates of his day.
	Bartolomé Estéban Murillo Bartolom Esteban Murillo was a Spain List of painters from Seville. He excelled in the painting of light clouds, flowers, water, and drapery, and in the use of color. He began his art studies under Juan del Castillo. In 1642, at the age of 26 he moved to Madrid, where he became a pupil of Velasquez.
	Bartonia Bartonia is a genus of the Gentianaceae family, tribe Gentianeae, subtribe Swertiinae. Members of this genus are called screwstems. Bartonia was also the name of a genus in the Loasaceae family, but all of those "Bartonia" species are now generally classified under the genus Mentzelia.
	Baryon In particle physics, the baryons are the family of subatomic particles which are made of three quarks. The family notably includes the proton and neutron, which make up the atomic nucleus, but many other unstable baryons exist as well. The term "baryon" is derived from the Greek language ' , meaning "heavy," because at the time of their naming it was believed that baryons were characterized by having greater mass than other particles.
	Basalt Basalt is a common gray to black volcanic rock. It is usually fine-grained due to rapid cooling of lava on the Earth's surface. It may be porphyritic containing larger crystals in a fine Matrix , or Vesicular texture, or frothy scoria. Unweathered basalt is black or gray.
	Base pair In molecular biology, two nucleotides on opposite complementarity DNA or RNA strands that are connected via hydrogen bonds are called a base pair . In DNA, adenine forms a base pair with thymine , as does guanine with cytosine . In RNA, thymine is replaced by uracil .
	Baseball Baseball is a team sports popular in North America, parts of Latin America, the Caribbean, and East Asia. The modern game was developed in the United States from an early bat-and-ball game called rounders , and it has become the national sport of the United States.
	Baseball bat A baseball bat is a smooth wooden or metal rod used in the game of baseball to hit the ball after the ball is thrown by the pitcher. It is not more than 2 3/4 inches in diameter at the thickest part and not more than 42 inches in length. The batter uses the bat two-handed to try to hit a pitched ball fair ball so that he may become a Baseball#Running the bases, advance bases, and ultimately score a run or help preceding runners to score.
	Baseball cap A baseball cap is a type of soft cap with a long, stiffened and curved peak and it is worn by men, women and children. The back of the cap often has a plastic, Velcro, or elastic adjustor so that it can be quickly adjusted to fit any wearer, although fitted caps are also common.
	Baseball card A baseball card is one type of trading card usually printed on some type of paper stock or card stock. A card will usually feature one or more baseball players or other baseball related sports figures. Cards are most often found in the United States, but are also popular in countries such as the Canada, Cuba, and Japan, where baseball is a popular sport and there are professional leagues.
	Baseball field A baseball field or baseball diamond is the playing field upon which the game of baseball is played.
	Baseball glove A baseball glove or mitt is a large leather glove that baseball players on the defending team are allowed to wear to assist them in catching and fielding balls hit by a batter, or thrown by a teammate. Some say the first player to use a baseball glove was Doug Allison, a catcher for the Cincinnati Reds, in 1870 in sports, due to an injured left hand.
	Baseboard Also see hydronics for baseboard heating, as opposed to forced-air. A baseboard or skirting board is a wooden board, normally 3 inches to 11 inches high, covering the lowest part of an interior wall. Its purpose is to cover the join between the wall surface and the floor, and to protect the wall from kicks and abrasion.
	Basel Basel is Switzerland's third most populous city . Located in north-west Switzerland on the river Rhine, Basel functions as a major industrial centre for the chemical and pharmaceutical industry. The city borders both Germany and France. The Basel region, culturally extending into German Baden-Wrttemberg and French Alsace, reflects the heritage of its three states in the modern Latin name: "Regio TriRhena".
	Basement A basement is one or more floors of a building that are either completely or partially below the ground floor. Slab-on-grade foundation buildings do not have basements. Basements are typically used as a utility space for a building where such items as the furnace, water heater, car park, and air-conditioning system are located; so also are amenities such as the electrical distribution system, and cable television distribution point.
	Basenji image = Basenji 600.jpg | image_caption = none | name = Basenji | altname = African Bush Dog African Barkless Dog Ango Angari Avuvi Congo Dog Zande Dog | country = Democratic Republic of the Congo | fcigroup = 5 | fcisection = 6 | fcinum = 43 | fcistd = akcgroup = Hound
	Bash name = GNU Bourne-Again Shell | screenshot = | caption = Screenshot of a sample bash session | developer = Chet Ramey | latest_release_version = 3.1 | latest_release_date = December 07 2005 | operating_system = Various | genre = Unix shell | license = GNU General Public License
	BASIC In computer programming, BASIC refers to a family of high-level programming languages. It was originally designed in 1963, by John George Kemeny and Thomas Eugene Kurtz at Dartmouth College, to provide access for non-science students to computers. At the time, nearly all computer use required writing custom software, which was something only scientists and mathematicians tended to do.
	Basidiomycota The Division Basidiomycota is a large Division within the Kingdom Fungi that includes those species that produce spores in a club-shaped structure called a basidium. Essentially the sibling group of the Ascomycota, it contains some 22,300 distinct species . The Basidiomycota was traditionally divided into Homobasidiomycetes ; and Heterobasidiomycetes .
	Basidium The basidium is a microscopic structure found on the hymenophore of fruiting bodies of basidiomycete fungi. As such, the presence of basidia is one of the main characteristic features of the Basidiomycota. The basidium usually bears four sexual spores called basidiospores; occasionally the number may be two or even eight.
	Basil Basil of the Family Lamiaceae is also known as St. Joseph's Wort and Sweet Basil. It is a tender low-growing herb, originally native to tropical Asia. It grows to between 2060 cm tall, with opposite, light green, silky leaf 1.55 cm long and 13 cm broad.
	Basil of Caesarea Basil of Caesarea, also called Basil the Great, was Bishop of Caesarea Mazaca, a leading churchman in the 4th century. The Eastern Orthodox Church considers him a saint and one of the Three Holy Hierarchs, together with Gregory Nazianzus and John Chrysostom.
	Basilar membrane The basilar membrane within the cochlea of the inner ear is a stiff structural element that separates two liquid-filled tubes that run along the coil of the cochlea, the scala media and the scala tympani (see figure).
	Basileus Basileus, signifies "Monarch". It is perhaps best known in English language as a title used by Byzantine Empire emperors, but also has a longer history of use for persons of authority in Ancient Greece.
	Basilica The Latin word basilica , was originally used to describe a ancient Rome public building , usually located at the centre of a Roman town . In Hellenistic cities, public basilicas appeared in the 2nd century BC. After the Roman Empire became officially Christian, the term came by extension to refer to a large and important church that has been given special ceremonial rights by the Pope.
	Basilicata Basilicata is a region in the south of Italy, bordering on Campania to the west, Puglia to the east, Calabria to the south, it has one short coastline on the Tyrrhenian Sea and another of the Gulf of Taranto in the Ionian Sea to the south-east. The region covers 9,992 square kilometre and in 2001 had a population of 597,768
	Basiliscus Flavius Basiliscus was a Byzantine Emperor of the House of Leo, who ruled briefly, when Emperor Zeno had been forced out of Constantinople. Basiliscus was the brother of Empress Verina, the wife of Emperor Leo I. His relationship with the emperor allowed him to pursue a military career, which, after minor initial successes, ended in 468, when he led the disastrous Byzantine invasion of Vandals Africa, in one of the largest military operations of Late Antiquity.
	Basilisk In European bestiary and legends, a basilisk is a legend reptile reputed to be king of Serpent and said to have the power of causing death by a single glance. According to the Naturalis Historia of Pliny the Elder, the basilisk is a small snake that is so venomous that it leaves a wide trail of deadly venom in its wake, and its gaze is likewise lethal.
	Basket A basket is a woven container which is traditionally constructed from stiff fibers, often made of willow. ]. The top is either left open or the basket may be fitted with a lid.
	Basketball Basketball is a sport in which two teams of five players each try to score points on one another by throwing a ball through a hoop under organized rules. Points are scored by passing the ball through the basket from above; the team with more points at the end of the game wins. A regular jump shot inside the arch is worth two points, beyond the arch is three points, and a free throw is one point.
	Basketball court In basketball, the basketball court is the playing surface/floor. In professional or organized basketball, especially when played indoors, it is usually made out of a hardwood, often maple, and highly polished. For outdoor courts, asphalt, blacktop, or similar materials are used. A basketball court is symmetrical both lengthwise and widthwise.
	Basking shark The basking shark, Cetorhinus maximus, is the second largest fish, after the whale shark. The basking shark is a cosmopolitan species - it is found in all the world's temperate oceans, it is a slow moving and generally harmless filter feeder. Like other large sharks, basking sharks are at risk of extinction due to a combination of low resilience and overfishing through increasing demands for the sharks' fins, flesh and organs.
	Basra Basra is the second largest city of Iraq with an estimated population of c. 2,600,000 . It is the country's main port. Basra is the capital of the Basra Governorate. The city is located along the Shatt al-Arab waterway near the Persian Gulf. Basra is 1 E4 m from the Persian Gulf and 1 E5 m from Baghdad, Iraq's capital and largest city.
	Bass clarinet The bass clarinet is a musical instrument of the clarinet family. Like standard clarinets, it is usually pitched in B flat, but it plays notes an octave below the more common soprano B flat clarinet and an octave above the contrabass clarinet. Bass clarinets in other keys, notably C and A, also exist.
	Bass drum A bass drum is a large drum that produces a note of low definite or indefinite pitch . There are three general classifications of bass drums: the concert bass drum, the 'kick' drum, and the pitched bass drum. The type usually seen or heard in orchestral or concert band music is the concert bass drum.
	Bass guitar The electric bass guitar is an electrically-amplified fingered string instrument. It is similar in appearance to an electric guitar but has a larger body, a longer neck and Scale length, and, usually, four strings tuned an octave lower in pitch , in the Bass range.
	Bassariscus Bassariscus is a genus of the Procyonidae scientific classification and Procyoninae scientific classification. There are two species in the genus: the ringtail or ringtail and the cacomistle. The genus was first described by Elliott Coues in 1887.
	Basse-Normandie Basse-Normandie is a region of France. It was created in 1956, when the Normandy region was divided into Basse-Normandie and Haute-Normandie. The region includes three dpartements, Calvados, Manche and Orne. It covers 10,857 square miles, 3.2 percent of the surface area of France.
	Basset Hound image = Basset Hound 600.jpg | image_caption = Red and white Basset | name = Basset Hound | country = France | fcigroup = 6 | fcisection = 1 | fcinum = 163 | fcistd = akcgroup = Hound | akcstd = ankcgroup = Group 4 | ankcstd = ckcgroup = Group 2 - Hounds | ckcstd = kcukgroup = Hound | kcukstd = nzkcgroup = Hounds