Definition of variable

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Variable (n.) A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables..

Lern More About Variable

Differential :: Differential (n.) An increment, usually an indefinitely small one, which is given to a variable quantity..
Fly :: Fly (v. i.) A heavy wheel, or cross arms with weights at the ends on a revolving axis, to regulate or equalize the motion of machinery by means of its inertia, where the power communicated, or the resistance to be overcome, is variable, as in the steam engine or the coining press. See Fly wheel (below)..
Spiracle :: Spiracle (n.) One of the external openings communicating with the air tubes or tracheae of insects, myriapods, and arachnids. They are variable in number, and are usually situated on the sides of the thorax and abdomen, a pair to a segment. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera..
Protean :: Protean (a.) Exceedingly variable; readily assuming different shapes or forms; as, an amoeba is a protean animalcule..
Versatile :: Versatile (a.) Liable to be turned in opinion; changeable; variable; unsteady; inconstant; as versatile disposition.
Variability :: Variability (n.) The quality or state of being variable; variableness.
Invariability :: Invariability (n.) The quality of being invariable; invariableness; constancy; uniformity.
Constant :: Constant (n.) That which is not subject to change; that which is invariable.
Limit :: Limit (v. t.) A determinate quantity, to which a variable one continually approaches, and may differ from it by less than any given difference, but to which, under the law of variation, the variable can never become exactly equivalent..
Law :: Law (n.) In matematics: The rule according to which anything, as the change of value of a variable, or the value of the terms of a series, proceeds; mode or order of sequence..
Governor :: Governor (n.) A contrivance applied to steam engines, water wheels, and other machinery, to maintain nearly uniform speed when the resistances and motive force are variable..
Jubilee :: "Jubilee (n.) A church solemnity or ceremony celebrated at Rome, at stated intervals, originally of one hundred years, but latterly of twenty-five; a plenary and extraordinary indulgence grated by the sovereign pontiff to the universal church. One invariable condition of granting this indulgence is the confession of sins and receiving of the eucharist..
Inequality :: Inequality (n.) Variableness; changeableness; inconstancy; lack of smoothness or equability; deviation; unsteadiness, as of the weather, feelings, etc..
Variable :: Variable (n.) A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables..
Constant :: Constant (v. t.) Remaining unchanged or invariable, as a quantity, force, law, etc..
Mira :: Mira (n.) A remarkable variable star in the constellation Cetus (/ Ceti).
Alterableness :: Alterableness (n.) The quality of being alterable; variableness; alterability.
Increment :: Increment (n.) The increase of a variable quantity or fraction from its present value to its next ascending value; the finite quantity, generally variable, by which a variable quantity is increased..
Metalline :: Metalline (n.) A substance of variable composition, but resembling a soft, dark-colored metal, used in the bearings of machines for obviating friction, and as a substitute for lubricants..
Covariant :: Covariant (n.) A function involving the coefficients and the variables of a quantic, and such that when the quantic is lineally transformed the same function of the new variables and coefficients shall be equal to the old function multiplied by a factor. An invariant is a like function involving only the coefficients of the quantic..
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