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dispersion, in chemistry

(Encyclopedia) dispersion, in chemistry, mixture in which fine particles of one substance are scattered throughout another substance. A dispersion is classed as a suspension, colloid, or solution.…

daphne, in botany

(Encyclopedia) daphne, common name for, and genus name of, certain low deciduous or evergreen shrubs native to Eurasia. In the United States several naturalized species are cultivated for their…

cypress, in botany

(Encyclopedia) cypress, common name for members of the Cupressaceae, a widely distributed family of coniferous shrubs and trees, several yielding valuable timber. The major genera are Juniperus (…

chord, in geometry

(Encyclopedia) chordchordkôrd [key], in geometry, straight line segment both end points of which lie on the circumference of a circle or other curve; it is a segment of a secant. A chord passing…

chord, in music

(Encyclopedia) chord, in music, two or more simultaneously sounding pitches. In tonal music the fundamental chord is called the triad. It consists of three pitches, two a perfect fifth apart and a…

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…