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savings bank

(Encyclopedia) savings bank, financial institution that, until recently, performed only the following functions: receiving savings deposits of individuals, investing them, and providing a modest…

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…

Rumi, Jalal ad-Din

(Encyclopedia) Rumi, Jalal ad-DinRumi, Jalal ad-Dinjälälˈ ĕd-dēnˈ r&oomacr;ˈmē [key], 1207–73, great Islamic Persian sage and poet mystic, b. in Balkh. His father, a scholar, was invited by the…

salicylic acid

(Encyclopedia) salicylic acid or 2-hydroxybenzoic acid, C6H4(OH)CO2H, a colorless, crystalline organic carboxylic acid that melts at 159℃; it is soluble in ethanol and ether but is only slightly…

vapor pressure

(Encyclopedia) vapor pressure, pressure exerted by a vapor that is in equilibrium with its liquid. A liquid standing in a sealed beaker is actually a dynamic system: some molecules of the liquid are…

screen

(Encyclopedia) screen, in architecture, partition or enclosure not extending to the ceiling; usually a structure in stone, wood, or metal. It frequently serves to mark the boundaries of portions of…

ozone

(Encyclopedia) ozoneozoneōˈzōn [key], an allotropic form of the chemical element oxygen (see allotropy). Pure ozone is an unstable, faintly bluish gas with a characteristic fresh, penetrating odor.…

quantum chromodynamics

(Encyclopedia) quantum chromodynamics (QCD), quantum field theory that describes the properties of the strong interactions between quarks and between protons and neutrons in the framework of quantum…

God

(Encyclopedia) God, divinity of the three great monotheistic religions, Judaism, Christianity, and Islam, as well as many other world religions. See also religion and articles on individual religions…

tap dance

(Encyclopedia) tap dance, theatrical dance form in which the dancer, wearing shoes with metal heel and toe taps, beats out complex, syncopated rhythms on the floor. After a slump in popularity in…