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Mercury, in astronomy

(Encyclopedia)Mercury, in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon a...

python, in zoology

(Encyclopedia)python pīˈthŏn [key], name for nonvenomous constrictor snakes of the boa family, found in the tropical regions of Africa, Asia, Australia, and the S Pacific islands. Pythons climb and swim expertly...

scale, in zoology

(Encyclopedia)scale, in zoology, an outgrowth, either bony or horny, of the skin of an animal. The major component of the scales of fishes is bone, and they are formed directly in the skin membrane as the fish grow...

saint, in Christianity

(Encyclopedia)saint [O.Fr., from Latin sanctus=holy], in Christianity, a person who is recognized as worthy of veneration. Accounts of saints' lives have been favorite reading material for many, and at times thei...

elevator, in machinery

(Encyclopedia)elevator, in machinery, device for transporting people or goods from one level to another. The term is applied to the enclosed structures as well as the open platforms used to provide vertical transpo...

Actors Studio, The

(Encyclopedia)Actors Studio, The, organization founded 1947 in New York City by the directors Cheryl Crawford, Elia Kazan, and Robert Lewis to train professional actors. Long directed (1948–82) by Lee Strasberg a...

valence, in chemistry

(Encyclopedia)valence, combining capacity of an atom expressed as the number of single bonds the atom can form or the number of electrons an element gives up or accepts when reacting to form a compound. Atoms are c...

Quincy, Josiah, 1744–75, political leader in the American Revolution

(Encyclopedia)Quincy, Josiah kwĭnˈzē [key], 1744–75, political leader in the American Revolution, b. Boston. An outstanding lawyer, he wrote a series of anonymous articles for the Boston Gazette in which he op...

chorus, in music

(Encyclopedia)chorus, in music, large group of singers performing in concert; a group singing liturgical music is a choir. The term chorus may also be used for a group singing or dancing together in a musical or in...

Aquila, in astronomy

(Encyclopedia)Aquila [Lat.,=the eagle], equatorial constellation located N of Sagittarius and Capricornus, lying partly in the Milky Way. It is sometimes depicted as an eagle. It contains the bright star Altair (Al...