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Jason, in Greek mythology

(Encyclopedia) Jason, in Greek mythology, son of Aeson. When Pelias usurped the throne of Iolcus and killed (or imprisoned) Aeson and most of his descendants, Jason was smuggled off to the centaur…

measurement

(Encyclopedia) measurement, determination of the magnitude of a quantity by comparison with a standard for that quantity. Quantities frequently measured include time, length, area, volume, pressure,…

menstruation

(Encyclopedia) menstruation, periodic flow of blood and cells from the lining of the uterus in humans and most other primates, occurring about every 28 days in women. Menstruation commences at…

photosynthesis

(Encyclopedia) photosynthesisphotosynthesisfōˌtōsĭnˈthəsĭs [key], process in which green plants, algae, and cyanobacteria utilize the energy of sunlight to manufacture carbohydrates from carbon…

Piast

(Encyclopedia) PiastPiastpyäst [key], 1st dynasty of Polish dukes and kings. Its name was derived from that of its legendary ancestor, a simple peasant. The first historic member, Duke Mieszko I (…

coral reefs

(Encyclopedia) coral reefs, limestone formations produced by living organisms, found in shallow, tropical marine waters. In most reefs, the predominant organisms are stony corals, colonial cnidarians…

coconut

(Encyclopedia) coconut, fruit of the coco palm (Cocos nucifera), a tree widely distributed through tropical regions. The seed is peculiarly adapted to dispersal by water because the large pod holding…

cheese

(Encyclopedia) cheese, food known from ancient times and consisting of the curd of milk separated from the whey. The numerous cheeses (often named for their place of origin) depend for their…

Charles XII, king of Sweden

(Encyclopedia) Charles XII, 1682–1718, king of Sweden (1697–1718), son and successor of Charles XI. The regency under which he succeeded was abolished in 1697 at the request of the Riksdag. At the…

bookkeeping

(Encyclopedia) bookkeeping, maintenance of systematic and convenient records of money transactions in order to show the condition of a business enterprise. The essential purpose of bookkeeping is to…