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Possible definitions for variate

variation
In biology, any difference between cells, individual organisms, or groups of organisms within a species caused either by genetic differences (variation in genotype) or by the effect of environmental factors on the expression of genetic potentials (variation in phenotype). Variation may be shown in physical appearance, metabolism, fertility, mode of reproduction, behavior, learning and mental ability, and other obvious or measurable characters. Genotypic variations are caused by differences in number or structure of chromosomes or by differences in the genes carried by the chromosomes. Eye color, body form, and disease resistance are genotypic variations. Phenotypic variations may result from factors such as climate, food supply, and actions of other organisms. Phenotypic variations also include stages in an organism's life cycle and seasonal variations in an individual. Because they do not involve hereditary alteration and in general are not transmitted to future generations, phenotypic variations are not important in evolution. See also polymorphism.


barite
Most common barium mineral, barium sulfate (BaSO4). It commonly forms as platy crystals (known as crested barite). Barite is abundant in parts of Spain, Germany, and the U.S. Commercially, ground barite is used in oil well and gas well drilling muds; in the preparation of barium compounds; as a filler for paper, cloth, and phonograph records; as a white pigment; and as an inert material in colored paints.


karate
Martial art in which an attacker is disabled by crippling kicks and punches. Emphasis is on concentration of as much of the body's power as possible at the point and instant of impact. Striking surfaces include hands (particularly the knuckles and the outer edge), ball of the foot, heel, forearm, knee, and elbow. In sporting matches (usually lasting about three minutes) and in sparring, blows and kicks are stopped short. Performances are scored by a panel of judges. Developed from older forms, karate was first systematized in Okinawa in the 17th cent. It was imported into Japan in the 1920s and spread from there to other countries. See also tae kwon do.


variable
In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation. Commonly used variables include and (real-number unknowns), (complex-number unknowns), (time), (radius), and (arc length). Variables should be distinguished from coefficients, fixed values that multiply powers of variables in polynomials and algebraic equations. In the quadratic equation , is the variable and , and are coefficients whose values must be specified to solve the equation. In translating word problems into algebraic equations, quantities to be determined can be represented by variables.

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