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periwinkle, in botany
(Encyclopedia)periwinkle, in botany: see dogbane. ...periwinkle, in zoology
(Encyclopedia)periwinkle, any of a group of marine gastropod mollusks having conical, spiral shells. Periwinkles feed on algae and seaweed. They are found at the water's edge; out of water, they resist drying by cl...Perseus, in astronomy
(Encyclopedia)Perseus, in astronomy, northern constellation lying E of Cassiopeia and N of Taurus. It contains the bright star Mirfak (Alpha Persei) and Algol (Beta Persei), a visible variable star of the type know...orange, in botany
(Encyclopedia)orange, name for a tree of the family Rutaceae (rue, or orange, family), native to China and Indochina, and for its fruit, the most important fresh fruit of international commerce. Its physical charac...orders in council
(Encyclopedia)orders in council, in British government, orders given by the sovereign on the advice of all or some of the members of the privy council, without the prior consent of Parliament. Orders in council, fi...proof, in law
(Encyclopedia)proof, in law: see evidence.proof, in mathematics
(Encyclopedia)proof, in mathematics, finite sequence of propositions each of which is either an axiom or follows from preceding propositions by one of the rules of logical inference (see symbolic logic). Mathematic...proof, in printing
(Encyclopedia)proof, in printing, a trial impression for inspection. Proofreading is the inspection and marking of proof for correction of errors and imperfections. Proofreaders' marks are included in dictionaries....Venus, in astronomy
(Encyclopedia)Venus, in astronomy, 2d planet from the sun; it is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its orbit lies between ...veronica, in botany
(Encyclopedia)veronica, in botany: see figwort. ...Browse by Subject
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