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polyp and medusa

(Encyclopedia)CE5 Polyp and medusa stages in the life cycle of Obelia, representative of the phylum Cnidaria polyp and medusa, names for the two body forms, one nonmotile and one typically free swimming, found ...

population I and II

(Encyclopedia)population I and II, in astronomy: see stellar populations. ...

oxidation and reduction

(Encyclopedia)oxidation and reduction, complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term oxidation was used to re...

acids and bases

(Encyclopedia)acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Another theory that provides a very broad ...

permutations and combinations

(Encyclopedia)permutations and combinations: see probability. ...

orchestra and orchestration

(Encyclopedia)CE5 Typical seating plan of a symphony orchestra orchestra and orchestration, an orchestra is a musical ensemble of mixed instruments based on strings and winds, under the direction of a conductor...

visit and search

(Encyclopedia)visit and search: see search, right of. ...

De Lancey

(Encyclopedia)De Lancey də lănˈsē [key], family of political leaders, soldiers, and merchants prominent in colonial New York. Étienne De Lancey or Stephen De Lancey, 1663–1741, b. Caen, France, was among the...

Austrian Succession, War of the

(Encyclopedia)Austrian Succession, War of the, 1740–48, general European war. In 1744 Frederick II, fearing the rising power of Austria, started the Second Silesian War by invading Bohemia; he was soon expell...

Suvorov, Aleksandr Vasilyevich

(Encyclopedia)Suvorov, Aleksandr Vasilyevich əlyĭksänˈ dər vəsēˈlyəvĭch so͞ovôˈrəf [key], 1729–1800, Russian field marshal. Suvorov entered the army as a youth and rose rapidly through the ranks. He...