Apache Apache is the collective name for several culture related groups of Native Americans in the United States, indigenous peoples inhabitants of North America, who speak a Southern Athabaskan languages language. The modern term excludes the related Navajo Nation people.
	Apadana See Apadana for the Pali texts. The Apadana is the name of the great audience hall at Persepolis. It belongs to the oldest building phase of the city, built during the first half of the 5th century BC as part of the original design by Darius I, its construction completed by Xerxes I.
	Apalachicola River The Apalachicola River is a river, approximately 112 mi long in the U.S. state Florida. The river's large watershed, known as the ACF River Basin for short, drains an area of approximately 19,500 sq mi into the Gulf of Mexico. The distance to its farthest headstream in northwest Georgia is approximately 500 mi.
	Apartment An apartment is a self-contained housing unit that occupies only part of a building. Apartments may be owned or rented. Some apartment-dwellers own their apartments, either as cooperative, in which the residents own shares of a corporation that owns the building or development; or in condominiums, whose residents own their apartments and share ownership of the public spaces.
	Apartment building An apartment building, block of flats or tenement is a Multi-family residential made up of several apartments or flats. Where the building is a high-rise construction, it is termed a tower block in the UK and elsewhere. The term apartment building is used regardless of height in the US.
	Apatite Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite, and chlorapatite, named for high concentrations of Hydroxyl-, Fluorine-, or Chlorine- ions, respectively, in the crystal. The formula of the admixture of the three most common species is written as Calcium5(Phosphate)3(OH, F, Cl), and the formulae of the individual minerals are written as
	Apatosaurus Apatosaurus , previously known as Brontosaurus, is a genus of sauropod dinosaurs that lived about 140 million years ago, during the Jurassic Period . They were some of the largest land animals that ever existed, about 4.5 metres tall at the hips, with a length of up to 21m and a mass up to 35 metric tonnes .
	Apatura Apatura is a genus of butterfly known as the Emperors. External links * at funit.fi
	Ape Apes are the members of the Hominoidea superfamily of primates, which includes humans. Under current classification, there are two family of hominoids: *the family Hylobatidae consists of 4 genera and 12 species of gibbons, including the Lar Gibbon and the Siamang, collectively known as the "lesser apes"
	Aperture In optics, an aperture is a hole or an opening through which light is admitted. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of ray that come to a focus in the An optical system typically has many openings, or structures that limit the ray bundles .
	Apheresis Apheresis is a medical technology in which the blood of a donor or patient is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation. It is thus an extracorporeal therapy.
	Aphid Aphids, also known as greenfly/blackfly or plant lice, are minute plant-feeding insects in the superfamily Aphidoidea in the homopterous division of the order Hemiptera. Recent classification within the Hemiptera has changed the old term 'Homoptera' to two suborders: Sternorryncha and Auchenorryncha with the suborder: Heteroptera containing a large group of insects known as the 'true-bugs', for more information on the taxonomy of this truely curious group of insects see "Carver, M, Gross, FG.
	Aphrodisias Aphrodisias was a town in Caria, now part of modern Turkey, about 230 kilometre from Izmir, located beside the modern village of Geyre. As its name implies, it was named after Aphrodite, the ancient Greece goddess of Love. According to the Suda, before being known as Aphrodisias, the city had three previous names: Lelegon Polis, Megale Polis, and Nino.
	Aphrodite Aphrodite is the Greek mythology goddess of love and beauty and human sexuality. Her Roman Empire equivalent is the goddess Venus .
	Aphyllanthaceae Aphyllanthaceae is the botanical name of a family of flowering plants. Such a family has been recognized by only few taxonomists. The APG II system does not recognize such a family, not as such, but allows it to be segregated from the family Asparagaceae, as an optional segregate.
	Apiaceae The Apiaceae or Umbelliferae is a family of usually aromatic plants with hollow stems, including parsley, carrot, and other relatives. It is a large family with about 300 genus and more than 3,000 species. The earlier name Umbelliferae derives from the inflorescence being in the form of a compound "umbel".
	Apiary An apiary is a place where beehive of honeybees are kept. Traditionally beekeepers paid land rent in honey for the use of small parcels. Some farmers will provide free apiary sites, because they need pollination, and farmers who need many hives often pay for them to be moved to the crops when they bloom.
	Apidae The Apidae are a large family of bees, comprising the common honeybees, stingless bees, carpenter bees, euglossini, nomadinae, bumblebees, and various other less well-known groups. Honeybees, stingless bees, and bumblebees are colonial, though they are sometimes believed to have each developed this independently, and show notable differences in such things as communication between workers.
	Apios americana Apios americana, sometimes called the hog peanut, potato bean, or groundnut is a perennial plant vine native to eastern North America, and bears edible beans and large edible tubers. It grows to 3-4 m long, with pinnate leaf 8-15 cm long with 5-7 leaflets.
	Apium Apium is a genus of about 20 species of flowering plants in the family Apiaceae, with a cosmopolitan distribution in Europe, Asia, Africa and South America. They are medium to tall biennial plant or perennial plant plants growing wet ground.
	Aplectrum hyemale Aplectrum hyemale is a species of orchids and the sole species of the genus Aplectrum. The generic name comes from Greek language and signifies "spurless". The species is commonly referred to as Adam and Eve or putty root, the latter refers to the mucilage fluid which can be removed from the tubers when they are crushed.
	Aplite Aplite in petrology, the name given to intrusive rock in which quartz and felspar are the dominant minerals. Aplites are usually very fine-grained, white, grey or flesh-coloured, and their constituents are visible only with the help of a magnifying lens. Dykes and threads of aplite are very frequently to be observed traversing granitic bosses; they occur also, though in less numbers, in syenites, diorites, quartz-diabases and gabbros.
	Aplysia The genus Aplysia belongs to the family Aplysiidae and is a genus of sea hares, which are a type of sea slug. The general description of these sea hares can be found under the entry about the superfamily Aplysioidea Aplysia, when threatened, releases clouds of ink to blind the attacker.
	Aplysiidae The superfamily Aplysioidea contains only one family, the Aplysiidae, or sea hares. In Australia they are sometimes known as "beach blobbies".
	Apocalypse See also: armageddon Apocalypse , is a term applied to the disclosure to certain privileged persons of something hidden from the mass of humankind. The Greek root corresponds in the Septuagint to the Hebrew galah , to reveal. The last book of the New Testament bears in Greek the title ?p??a????? ??a????, and is frequently referred to as the Apocalypse of John, but in the English Bible it appears as the Revelation of St John the Divine, or the Book of Revelation .
	Apocynaceae The Apocynaceae or dogbane family is a family of flowering plants, including trees, shrubs, herbs, or lianas. Many species are tall trees found in the tropical rainforest, and most are from the tropics and subtropics, but some come from tropical dry, xeric environments.
	Apocynum Apocynum is a genus with about seven species, commonly known as Dogbane and Indian Hemp. The genus occurs throughout most of the temperate Northern Hemisphere, except for being absent from western Europe. Apocynum species are used as food plants by the larvae of some Lepidoptera species including Mouse Moth.
	Apocynum cannabinum Apocynum cannabinum is a perennial plant herbaceous plant that grows throughout much of North America, in the southern half of Canada and throughout the United States. It grows up to 2 meters tall. It prefers moist places. It is a poisonous plant; the name means "poisonous to dogs".
	Apodemus Apodemus is a genus of Eurasian field mouse. *Striped Field Mouse Apodemus agrarius *Alpine Field Mouse Apodemus alpicola *Small Japanese Field Mouse Apodemus argenteus *Persian Field Mouse Apodemus arianus *Chevrier's Field Mouse Apodemus chevrieri
	Apodiformes Traditionally, the bird order Apodiformes contained three living families: the swifts, Apodidae, the tree swifts, Hemiprocnidae, and the hummingbirds, Trochilidae. In the Sibley-Ahlquist taxonomy, hummingbirds are separated from the Apodiformes as a new order, Trochiliformes.
	Apogonidae Cardinalfishes are a family, Apogonidae, of ray-finned fishes. They are found in the Atlantic Ocean, Indian Ocean, and Pacific Ocean oceans, they are chiefly marine, but some species are found in brackish water.
	Apoidea The superfamily Apoidea is a major group within the Hymenoptera, as it includes the "sphecidae" wasps, in addition to their descendants, the bees. These two major lineages are too closely related to be cleanly split from one another, and even the present classification faces some serious challenges, as it appears that the sphecoid family Crabronidae is the group from which the bees arose.
	Apollo In Greek mythology and Roman mythology, Apollo , the ideal of the kouros, was the archer-god of medicine and healing and also a bringer of death-dealing plague; as the leader of the Muses and director of their choir, he is a god of music and poetry. Hymns sung to Apollo were called Paeans.
	Apomorphine Apomorphine is a type of dopaminergic agonist, a morphine derivative. Apomorphine is a relatively non-selective dopamine receptor agonist, having possible slightly higher affinity for D2-like dopamine receptors. Historically, apomorphine has been tried for a variety of uses including psychiatric treatment of homosexuality in the early 20th century.
	Apophysis Apophysis is a free software, open source fractal flame editor and renderer for Microsoft Windows. It was created by and has since been improved and updated by Peter Sdobnov, Piotr Borys, Susan Chambless and Ronald Hordijk. Fractal Flames were originally developed in 1992 by
	Apoptosis In biology, apoptosis is one of the main types of programmed cell death . As such, it is a process of deliberate life relinquishment by a Cell in a multicellular organism. In contrast to necrosis, which is a form of cell death that results from acute cellular injury, apoptosis is carried out in an ordered process that generally confers advantages during an organism's life cycle.
	Apostasy Apostasy is a term generally employed to describe the formal renunciation of one's religion, especially if the motive is deemed unworthy. In a technical sense, as used by sociology without the sometimes pejorative connotations of the word, the term refers to renunciation and criticism of, or opposition to one's former religion.
	Apostrophe The apostrophe is a punctuation mark, and sometimes a diacritic mark, in languages written in the Latin alphabet. In English language, it has two main functions: it marks omissions; and it assists in marking the possessives of all nouns and many pronouns. The word comes from Greek language , through Latin language and French language.
	Apothecary Apothecary is a historical name for a medicine practitioner who formulates and dispenses materia medica to physicians, surgerys and patients — a role now served by a pharmacist. In addition to pharmacy the apothecary also offered general medical advice and a range of services that are now performed solely by other specialist practitioners, such as surgery and midwifery.
	Apotheosis Apotheosis means glorification, usually to a divine level, coming from the Greek word apotheoun, "to deify".
	Appalachia Appalachia is a term used to describe a region in the Eastern United States United States that stretches from New York to Alabama. Surrounding the Appalachian Mountains, it includes rural, urban, and industrialized regions. Although parts of the Appalachian Mountains extend through Maine into Canada, New England is usually excluded from the definition of the Appalachian region.
	Appalachian Mountains The Appalachian Mountains are a vast system of North American mountains, partly in Canada, but mostly in the United States, forming a zone, from 100 to 300 miles wide, running from Newfoundland and Labrador, Canada, 1,500 miles south-westward to central Alabama in the United States, although the northernmost mainland portion ends at the Gasp Peninsula of Quebec.
	Appaloosa The Appaloosa is a horse breed, in which the horse has one of several distinct patterns of spots.
	Appeasement Appeasement is a policy of accepting the imposed conditions of an aggressor in lieu of armed resistance. Since World War II, the term has gained a negative connotation, in politics and in general, of weakness, cowardice and self-deception.
	Appendicectomy An appendicectomy is the surgical removal of the vermiform appendix. This procedure is normally performed as an emergency procedure, when the patient is suffering from acute appendicitis. In the absence of surgical facilities, intravenous antibiotics are used to delay or avoid the onset of sepsis; it is now recognised that many cases will resolve when treated non-operatively.
	Appendicitis Appendicitis, or epityphlitis, is a condition characterised by inflammation of the Vermiform appendix. While mild cases may resolve without treatment, most require removal of the inflamed appendix, either by laparotomy or laparoscopy. Untreated, mortality is high, mainly due to peritonitis and shock.
	Appian Way The Appian Way was the most important ancient Roman road. Its importance is indicated by its common name, recorded by Statius :
	Apple The apple is a tree and its pome fruit, of the species Malus domestica in the rose family Rosaceae. It is one of the most widely Cultivation tree fruits. It is a small deciduous tree reaching 5-12 m tall, with a broad, often densely twiggy crown.
	Apple juice Apple juice is the fruit juice product manufactured from the pressing of apples.
	Apple pie In cooking, an apple pie is a fruit pie in which the principal filling ingredient is Apples. This pastry is generally used top-and-bottom, making a double-crust pie. An exception is the Tarte Tatin.
	Applesauce Applesauce is a tasty sauce that is made from stewed and mashed apple s. Sometimes, apple sauce is sweetened with sugar or high fructose corn syrup; sometimes it is pure. It can use peeled or unpeeled apples and a variety of spices or additives like cinnamon. Applesauce can be fine or coarse textured, even to including large chunks of apple.
	Applique Applique is a technique in which pieces of fabric are sewn onto a foundation piece of fabric to create designs. It is particularly suitable for work which is to be seen from a distance, for example, Banner-making. A famous example of applique is the Hastings Embroidery whose designs are appliqued onto the backing fabric using a variety of embroidery stitches.
	Apricot The apricot is a fruit-bearing tree native to China. It is related to the plum, and classified with it in the subgenus Prunus of the genus Prunus. It is a small- to medium-sized tree with a dense, spreading canopy 8–12 m tall; its leaf are shaped somewhat like a heart, with pointed tips, and about 8 cm long and 3–4 cm wide.
	Apron An apron is an outer Personal protective equipment that covers primarily the front of the body. It may be worn for hygienic reasons as well as in order to protect clothes from wear and tear. The apron is commonly part of the uniform of several work categories, including Waiter, nurses, homemakers and domestic staff.
	Apse In architecture, the apse is a semicircular recess covered with a hemispherical vault. In Romanesque, Byzantine architecture and Gothic architecture Christian abbey, cathedral and church architecture, the term is applied to the semi-circular or polygonal section of the sanctuary at the liturgical east end beyond the altar.
	Apsis In astronomy, an apsis is the point of greatest or least distance of the elliptical orbit of a celestial body from its center of attraction, which is generally the center of mass of the system. The point of closest approach is called the periapsis or pericentre and the point of farthest excursion is the apoapsis, apocentre or apapsis.
	Aptenodytes The genus Aptenodytes contains two extant species of penguins collectively known as "the great penguins". * King Penguin, Aptenodytes patagonicus * Emperor Penguin, Aptenodytes forsteri Ridgen's Penguin is an extinct species known from fossil bones.
	Apulia Apulia is a region in southeastern Italy bordering the Adriatic Sea in the east, the Ionian Sea to the southeast, and the Strait of Otranto and Gulf of Taranto in the south. Its southern portion known as Salento, a peninsula, forms the heel of the Italian "boot." The region is comprised of 7,469 square miles , and its population is 4,031,885 residents .
	Apúlia Ap?lia is a Portugal parish located in the municipality of Esposende. It has a population of 4,323 inhabitants and a total area of 10.51 Km?, population density 411.3. It was a town and a municipality until 1834, when it was incorporated into Esposende. Ap?lia is known for its dune beaches and Roman-style folk costumes.
	Aqaba Aqaba is a coastal town with a population of 70,000 and 2% of Jordan's population in the far south of Jordan. It is the capital of Aqaba Governorate. Aqaba is strategically important to Jordan as it is the country's only seaport. The town borders Elat, Israel and there is a border post where it is possible to cross between the two countries.
	Aqua regia Aqua regia is a highly corrosive, fuming yellow or red solution formed by a fresh mixture of concentrated nitric acid and concentrated hydrochloric acid, usually in a volumetric ratio of one to three. It is one of the few reagents that dissolves gold and platinum. It was so named because it can dissolve the so-called royal, or noble metals, although tantalum, iridium, and a few other metals are able to withstand it.
	Aquaculture Aquaculture is the cultivation of the natural produce of water . Mariculture is specifically ocean aquaculture, and thus is a subset of aquaculture. Some examples of aquaculture include raising catfish and tilapia in freshwater ponds, growing pearl, and farming salmon in net-pens set out in a bay.
	Aquamarine Aquamarine is a gemstone-quality transparent variety of beryl, having a delicate blue or blue-green color, suggestive of the tint of seawater. It's closely related to the gem emerald. Colors vary and yellow beryl, called heliodor; rose pink beryl, morganite; and white beryl, goshenite are known.
	Aquarium An aquarium is a vivarium, usually contained in a clear-sided container in which water-dwelling plants and animals are kept in captivity, often for public display; or it is an establishment featuring such displays. Aquarium keeping is a popular hobby around the world, with about 60 million enthusiasts worldwide.
	Aquatic plant (UTC)manideepaAquatic plants — also called hydrophytic plants or hydrophytes — are plants that have adapted to living in or on aquatic. Because living on or under the water surface requires numerous special adaptations, aquatic plants can only grow in water or permanently saturated soil.
	Aqueduct An aqueduct is an artificial channel that is constructed to convey water from one location to another. The word is derived from the Latin language aqua, "water," and ducere, "to lead." Many aqueducts are raised above the landscape, resembling bridges rather than rivers.
	Aqueous humour The aqueous humour, or aqueous, is the clear, watery fluid in the eye that fills the space between the back surface of the cornea and the front surface of the vitreous humour.
	Aquifer An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials from which groundwater can be usefully extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.
	Aquifoliaceae Aquifoliaceae is a small flowering plant family with only one genus, Ilex, the Holly, a large genus with about 600 species distributed nearly world-wide, absent only from Australasia and western North America. They are shrubs and small trees, including both evergreen and deciduous species.
	Aquilegia Aquilegia is a genus of about 60-70 species of herbaceous perennial plants that are found in field, woodlands, and at higher altitudes throughout the Northern Hemisphere. They are known for their distinctive flowers, generally bell-shaped, with each petal modified into an elongated nectar spur.