American Bittern The American Bittern is a wading bird of the heron family Ardeidae. It is a large, chunky, brown bird, very similar to the Eurasian Great Bittern, Botaurus stellaris. It is 59-70 cm in length, with a 95-115 cm wingspan. Although common in much of its range, the American Bittern is usually well-hidden in bogs, marshes and wet meadows.
	American black bear The American black bear , also known as the cinnamon bear, is the most common bear species native to North America. The black bear lives throughout much of the continent, from northern Canada and Alaska south into Mexico, from the Atlantic Ocean to the Pacific Ocean.
	American cheese American cheese is a common processed cheese marketed by Kraft Foods, Borden, and other companies in the United States, and to some extent elsewhere. It is orange, yellow, or white in color and mild in flavor, with a medium-firm consistency, and melts easily. It is typically made from a blend of cheeses, most often Colby cheese and Cheddar cheese.
	American Chestnut The American Chestnut was one of the most important forest trees throughout much of the eastern United States and southeasternmost Canada. A rapidly growing deciduous hardwood tree, it it reached up to 30-45 meters tall and 3 meters in diameter, and ranged from Maine and southern Ontario to Mississippi, and from the Atlantic coast to the Appalachian Mountains and the Ohio Valley.
	American Civil War The American Civil War was a sectional conflict in the United States of America between the federal government and 11 Southern United States slave states that declared their secession and formed the Confederate States of America, led by President Jefferson Davis.
	American cockroach The American cockroach is a large species of cockroach, winged, and growing to a length of 1" to 1½". It is very common in the southern United States, and in tropical climates, and can be found in many locations throughout the world, due to its travels via shipping and commerce between locations.
	American Coot The American Coot is a large waterbird, of the family Rallidae. Adults have a short thick white bill and white frontal shield, with a reddish-brown spot near the base of the bill between the eyes. The body is grey with the head and neck darker than the rest of the body. Their legs are yellowish, with scalloped toes rather than webbed feet.
	American Crow The American Crow is slightly smaller than the European Carrion Crow in overall size and also has a proportionately smaller bill. Feathers are black, with a purple or blue iridescence in some lights. Legs, feet and bill are also black. Several regional forms are recognized and differ in bill proportion and overall size from each other across North America, generally smallest in the southeast and the far west.
	American Dream The American Dream is the belief that in the United States of America, hard work and determination can lead to a better life, usually through the earnings of money. These were values held by many early European settlers, and have been passed on to the newer generations. Some consider the American dream to be having two children and living in a suburban house with financial security and 2 car garage.
	American Dreams American Dreams was an United States television drama program broadcast on the NBC television network. It debuted on September 29th, 2002. The show was filmed in Philadelphia, Pennslvania, and parts at Lehigh University. It initially aired on Sundays at 8:00pm but moved to the same time on Wednesdays starting March 9, 2005.
	American Elm The American Elm Ulmus americana is a species of elm native to eastern North America, occurring from Nova Scotia west to southeast Saskatchewan, and south to Florida and central Texas. It is also sometimes known as White Elm or American White Elm. It is an extremely hardy tree that can withstand harsh winters, even in northern and central British Columbia, Alberta and Saskatchewan, where they have been extensively planted as ornamental trees in cities across these Canadian provinces.
	American English American English is the dialect of the English language used mostly in the United States. It is estimated that approximately two thirds of first language of English live in the United States. American English is also sometimes called United States English or U.S.
	American Falls The American Falls is one of three waterfalls that together are known as Niagara Falls on the Niagara River along the United States-Canada border. Unlike the wider Horseshoe Falls, which is on the Canada side of the border, the American Falls is completely within the U.S. state of New York.
	American football American football, known in the United States and Canada simply as football, is a competitive team sport. The object of the game is to score points by advancing the football into the opposing team's end zone. The ball can be advanced by carrying the ball, or by throwing or handing it from one teammate to the other.
	American Foxhound The American Foxhound is a dog breed of dog that is cousin to the English Foxhound. They are scent hounds, bred to hunt by scent.
	American Holly American holly is a small to medium evergreen tree in the family Aquifoliaceae, with red berry that persist into winter. It is native to the eastern and central United States. The berries are reputedly poisonous to humans, but are important survival food for birds, who will eat the berries after other food sources are exhausted.
	American Hornbeam The American Hornbeam is a small hardwood tree in the genus Hornbeam. American Hornbeam is also occasionally known as blue-beech, ironwood, or musclewood. It is native to eastern North America, from Minnesota and southern Ontario east to Maine, and south to eastern Texas and northern Florida.
	American Kestrel The American Kestrel is a small falcon. This bird was formerly known in North America as the Sparrow Hawk. This name was misleading because it implied a connection with the Old World Sparrowhawk Accipiter nisus, which is unrelated - the latter is a hawk rather than a falcon.
	American Legion The American Legion is an list of veterans' organizations of veterans of the Military of the United States who served in wartime. The Organization was founded in 1919 by veterans returning from Europe after World War I and is headquartered in Indianapolis, Indiana.
	American Licorice American Licorice is a species of Glycyrrhiza native to most of North America, from central Canada south through the United States to California, Texas and Virginia, but absent from the southeastern states. It is also sometimes known in the United States as "wild licorice", to distinguish it from the related Liquorice which is occasionally cultivated.
	American lobster The American lobster is a species of lobster, also known as the northern lobster, or the Maine lobster. They thrive in cold, shallow waters where there are many rocks and other places to hide from predators. Lobsters are solitary and nocturnal. Found along the coast of North America as far south as North Carolina, they are famously associated with the colder waters around the Canadian Maritimes, Newfoundland and Labrador, Massachusetts, and Maine, where they can grow to enormous sizes.
	American Marten The American Marten is a North American marten sometimes also called the Pine Marten, even though it is a separate species from the Pine Marten. Some sources believe that the population found in the western United States should be considered a distinct species and given the scientific name Martes caurina.
	American Mink The American Mink, Mustela vison, is a North American member of the Mustelidae family found in Alaska, Canada and most of the United States. Some have established themselves in the wild in Newfoundland, Europe and South America after escaping from fur farms.
	American Pit Bull Terrier The American PitBull Terrier is a dog breed of dog in the terrier group, one of several breeds loosely classified as pit bulls. Dogs of this breed are known for their strength, loyalty, and gameness. Ownership of APBTs is controversial, due to a well publicized series of attacks by dogs considered to be of this breed over the last few decades.
	American Red Squirrel The North American red squirrel is a medium sized Diurnal animal mammal that defends a year-round exclusive territory. The diet of these tree squirrels is specialized on the seeds of conifer cones. As such, they are widely distributed throughout North America wherever conifers are common.
	American Redstart The American Redstart, Setophaga ruticilla, is a New World warbler. It breeds in North America across southern Canada and the eastern USA. It is bird migration, wintering in Central America, the West Indies and northern South America. This is a very rare vagrant to western Europe.
	American Revolution The American Revolution was a political movement that ended Kingdom of Great Britain control of the south-eastern coastal area of North America, resulting in the formation of the United States in 1776 and sparking the American Revolutionary War.
	American Revolutionary War The American Revolutionary War , also known as the American War of Independence, was a war between Kingdom of Great Britain and revolutionaries within 13 colonies, who United States Declaration of Independence as the United States in 1776.
	American Robin The American Robin is a bird migration songbird of the true thrush family.
	American Samoa American Samoa is an unorganized territory, incorporated territory of the United States located in the South Pacific Ocean southeast of the sovereign state of Samoa. The main island is Tutuila, with the Islands, Rose Atoll, and Swains Island also included in the territory.
	American Shrew Mole The American shrew mole, Neurotrichus gibbsii, is the smallest North American mole. It is the only member of the genus Neurotrichus. It is found in damp forested or bushy areas with deep loose soils in the western United States and southwestern British Columbia.
	American Staffordshire Terrier The American Staffordshire Terrier is a dog breed of dog. The breed is descended from American dog fighting breeds and was intended to be a show dog strain of the American Pit Bull Terrier. American Staffordshire Terriers were first recognized by the American Kennel Club in 1936.
	American Standard Version The Standard American Edition, Revised Version, more commonly known as the American Standard Version, is a version of the Bible that was released in 1901.
	American Stock Exchange The American Stock Exchange is an United States stock exchange situated in New York City. AMEX is a mutual organization, owned by its members. The Exchange traces its roots back to colonial times when stock brokers created outdoor markets to trade new government security .
	American sycamore The American sycamore, also known as American plane and Buttonwood, is one of the species of Platanus native to North America, where it is rather confusingly often just called Sycamore, which can refer to other types of tree. It forms a massive tree, typically reaching up to 30-40 metres high.
	American toad The American toad is a common species of toad found throughout the eastern United States and Canada.
	American Turkey Oak The American Turkey Oak is a member of the red oaks group of oaks. It is native to the southeastern United States, occurring on the coastal plain from Delaware south to central Florida, and west to southeast Louisiana. It is a small tree, sometimes shrubby, typically only 8-10 m tall, though occasionally reaching 18 m.
	American Water Shrew The American Water Shrew or Northern Water Shrew, Sorex palustris, is a large North American shrew found in aquatic habitats. Some sources include the Glacier Bay Water Shrew, S. alaskanus, within this species. This animal is dark grey in colour with lighter underparts with a long tail.
	American Water Spaniel image = American_water_spaniel_01.jpg | image_caption = American Water Spaniel | name = American Water Spaniel | country = United States | fcigroup = 8 | fcisection = 3 | fcinum = 301 | fcistd = akcgroup = Sporting | akcstd = ckcgroup = Group 1 - | ckcstd = ukcgroup = Gun Dog Breeds | ukcstd =
	American Wisteria American wisteria is a Woody plant, deciduous, perennial climbing vine of the Wisteria family. It is native to the wet forests and stream banks of the southeastern United States, with a range stretching from the states of Virginia to Louisiana and extending southeast through Florida.
	American Woodcock The American Woodcock, Scolopax minor, is a small chunky wader. Adults have short pinkish legs and a very long straight bill with an articulated tip. The body is patterned cinnamon on top and a lighter brown underneath. They have large eyes located high in the head. The wings are rounded.
	Americana Americana refers to artifacts of the culture of the United States. Examples of this culture include baseball, apple pie, jazz, Superman, the Diner, George Gershwin's Rhapsody in Blue, the music of Aaron Copland, and American folk art, such as that of Norman Rockwell.
	Americas he Americas are the lands of the Western Hemisphere or New World consisting of the continents of North America and South America with their associated islands and regions. The Americas cover 8.3% of the Earth's total surface area and contain about 14% of the human population.
	Americium Americium is a synthetic element in the periodic table that has the symbol Am and atomic number 95. A radioactive decay metallic element, americium is an actinide that was obtained by bombarding plutonium with neutrons and was the fourth transuranic element to be discovered.
	Amerigo Vespucci Amerigo Vespucci was an Italy merchant, explorer and cartography. He played a senior role in two voyages which explored the east coast of South America between 1499 and 1502. The discoveries on these voyages convinced him that this land was part of a new continent, a bold contention at a time when the European explorers crossing the Atlantic Ocean thought they were reaching Asia.
	Amethyst Amethyst is a violet or purple variety of quartz often used as an ornamental stone. The name comes from the Greek language a and methuskein , a reference to the belief that the stone protected its owner from drunkenness; the Ancient Greece and Ancient Rome wore amethyst and made drinking vessels of it in the belief that it would prevent intoxication.
	Amide n chemistry, an amide is one of two kinds of compounds: - the organic chemistry functional group characterized by a carbonyl group linked to a nitrogen atom , or a compound that contains this functional group ; or - a particular kind of nitrogen anion.
	Amine Amines are organic compounds and a type of functional group that contain nitrogen as the key atom. Structurally amines resemble ammonia, wherein one or more hydrogen atoms are replaced by organic substituents such as alkyl and aryl groups. An important exception to this rule is that compounds of the type RCNR2, where the C refers to a carbonyl group, are called amides rather than amines.
	Amino acid In chemistry, an amino acid is any molecule that contains both amine and carboxyl functional groups. In biochemistry, this shorter and more general term is frequently used to refer to alpha amino acids: those amino acids in which the amino and carboxylate functionalities are attached to the same carbon, the so-called alpha carbon.
	Aminophylline Aminophylline is a drug combination that contains theophylline and ethylenediamine in 2:1 ratio.
	Amiodarone Amiodarone belongs to a class of drugs called Vaughan-Williams Class III antiarrhythmic agents. It is used in the treatment of a wide range of cardiac tachyarhthmias, including both ventricular and supraventricular arrhythmias.
	Amish The Amish, pronounced ' mish, or m' ish, are an Anabaptist Christian denomination found primarily in the United States and Ontario, Canada, that are known for restrictions on the use of modern devices such as automobiles and telephones. The Amish separate themselves from outside society for religious reasons; they do not join the military, draw Social Security , or accept any form of assistance from the government, and many avoid insurance.
	Amitriptyline Amitriptyline hydrochloride is a tricyclic antidepressant Medication. It is a white, odorless, crystalline compound which is freely soluble in water and usually dispensed in tablet form.
	Amman Amman, sometimes spelled Ammann , is the capital city of the Kingdom of Jordan, a city of more than 1.6 million inhabitants , and the administrative capital and commercial centre of Jordan. It is the capital city of Amman Governorate.
	Ammeter An ammeter is a measuring instrument used to measure the flow of electric current in a Electric circuit. Electric currents are measured in amperes, hence the name. The word "ammeter" is commonly misspelled or mispronounced as "ampmeter" by some. The earliest design is the D'Arsonval galvanometer or moving coil ammeter.
	Ammonia Ammonia is a chemical compound of nitrogen and hydrogen with the chemical formula NH3. At standard temperature and pressure, ammonia is a gas. It is toxic and corrosive to some materials, and has a characteristic pungent odor.
	Ammonite Ammonites are an Extinction group of marine animals of the Subclass Ammonoidea in the class Cephalopoda, phylum Mollusca. They are excellent index fossils, and it is often possible to link the rock layer in which they are found to specific Geologic time scale.
	Ammonium The ammonium cation is a positively electric charge polyatomic ion of the chemical formula 4+ and a molecular mass of 18.04, resulting from protonation of ammonia. Ammonium and aminium are also general names for positively charged or protonation Substitution amines and quaternary ammonium cations N+R4, where one or more hydrogen atoms are replaced by organic radical groups.
	Ammonium alum Ammonium alum2·12H2O) is a white crystalline double sulfate of aluminium, used in water purification, in vegetable glues, in porcelain cements, in natural deodorant and in tanning, dyeing and in fireproofing textiles. As a deodorant, it inhibits bacterial growth and allowing the elimination of toxins without clogging the pore in the skin.
	Ammonium chloride Ammonium chloride or Sal Ammoniac is, in its pure form, a clear white water-soluble crystalline salt with a biting taste. In nature, the substance occurs in volcano regions, forming on volcanic rocks near fume-releasing vents. The crystals deposit directly from the gaseous state, and tend to be short-lived, as they dissolve easily in water.
	Ammonium nitrate The chemical compound ammonium nitrate, the nitrate of ammonia with chemical formula NitrogenHydrogen4NitrogenOxygen3, is a white powder at room temperature and pressure. It is commonly used in agriculture as a high-nitrogen fertilizer, and it has also been used as an oxidising agent in explosives, especially improvised explosive devices.
	Ammunition Ammunition is a generic military term meaning a projectile and its gunpowder. It is derived through French language from the Latin munire . See also munition.
	Amniote The amniotes are a microphylum of tetrapod vertebrates that include the Synapsida and Sauropsida. They are defined by embryogenesis that includes the formation of several extensive membranes, the amnion, chorion, and allantois. Amniotes develop directly into a terrestrial form with limbs and a thick stratified epithelium, rather than first entering a feeding larval tadpole stage followed by metamorphosis as in amphibians.
	Amniotic sac The amniotic sac is a tough but thin transparent pair of membranes, which hold a developing embryo until shortly before childbirth. The inner membrane, the amnion, contains the amniotic fluid and the fetus. The outer membrane, the chorion, contains the amnion and is part of the placenta.
	Amobarbital Amobarbital is a drug which is a barbiturate derivative. It has sedative-hypnotic and analgesic properties, but lacks anxiolytic properties. It is a white crystalline powder with no odor and a slightly bitter taste. If amobarbital is taken for extended periods of time, physical and psychological dependence may develop.
	Amoeba Amoeba is a genus of protozoa that moves by means of temporary projections called pseudopods, and is well-known as a representative unicellular organism. The word amoeba or ameba is variously used to refer to it and its close relatives, now grouped as the Amoebozoa, or to all protozoa that move using pseudopods, otherwise termed amoeboids.
	Amoebiasis Amoebiasis is infection by a protozoan, typically Entamoeba histolytica. It is usually contracted by ingesting water or food contaminated by amoebic cysts. Is usually included between the waterborne diseases. Amoebiasis most commonly affects young to middle-aged adults.
	Amoeboid Amoeboids are cell s that move or feed by means of temporary projections, called pseudopods . They have appeared in a number of different groups. Some cells in multicellular animals may be amoeboid, for instance our white blood cells, which consume pathogens. Many protists exist as individual amoeboid cells, or take such a form at some point in their life-cycle.
	Amorpha Amorpha is a genus of plants in the pea family Fabaceae. All the species are native to North America, from southern Canada, most of the United States, and northern Mexico. They are commonly known as false indigo. The flowers are shaped as a small narrow peaflower and grow in racemes.
	Amorphophallus Amorphophallus is a large genus of some 170 tropical and subtropical tuberous herbaceous plants from the Arum family . These are typical lowland plants, growing in the tropical and subtropical zones of the paleotropics, from West Africa to the Pacific Islands. None of them are found in the Americas although a remarkably similar but not closely related genus, Dracontium, has evolved here.