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guanine

(Encyclopedia)guanine gwäˈnēn [key], organic base of the purine family. It was reported (1846) to be in the guano of birds; later (1879–84) it was established as one of the major constituents of nucleic acids....

Kamehameha

(Encyclopedia)Kamehameha kämāˈhämāˈhä [key], dynasty of Hawaiian monarchs. Kamehameha I (Kamehameha the Great), c.1738–1819, was king of the island of Hawaii after 1790. Through conquest he became (1810) r...

social contract

(Encyclopedia)social contract, agreement or covenant by which men are said to have abandoned the “state of nature” to form the society in which they now live. The theory of such a contract, first formulated by ...

thymine

(Encyclopedia)thymine thīˈmēn [key], organic base of the pyrimidine family. Thymine was the first pyrimidine to be purified from a natural source, having been isolated from calf thymus and beef spleen in 1893–...

Polish language

(Encyclopedia)Polish language, member of the West Slavic group of the Slavic subfamily of the Indo-European family of languages (see Slavic languages). Polish is spoken as a first language by about 38 million peopl...

competition, in biology

(Encyclopedia)competition, in biology, relationship between members of the same or different species in which individuals are adversely affected by those having the same living requirements, such as food or space. ...

mojarra

(Encyclopedia)mojarra mōhärˈə [key], common name for a member of the family Gerreidae, small tropical food fishes. The many American species are found chiefly off the S Atlantic coast but also along the Pacific...

intestine

(Encyclopedia)intestine, muscular hoselike portion of the gastrointestinal tract extending from the lower end of the stomach (pylorus) to the anal opening. In humans this fairly narrow (about 1 in./2.5 cm) tubelike...

Harpy, in Greek mythology

(Encyclopedia)Harpy, in Greek mythology, winged women with sharp claws who snatched food, objects, or people.

Good Agricultural Practices

(Encyclopedia)Good Agricultural Practices (GAP), economically, socially, and environmentally responsible methods and technologies for the raising and marketing of agricultural and horticultural products. Good agric...