Science / Chemistry / Variable: A quantity that can have many possible values. In designing experiments, variables that affect measurements must be identified and controlled. For example, an experiment that measures reaction rates must control temperature, because temperature is a variable that can change the rate of reaction.
Variable Noun Synonyms: changeable, protean, changing, inconstant, varying, wavering, mercurial, fickle, capricious, unsteady, unfixed, unstable, uncertain, undependable, unpredictable, fluctuating, vacillating, mutable, chameleonic, chameleon-like
Business / Finance / Variable Annuities: An element in a model. For example, in the model RS&Pt+1 = a + b Tbillt + et, where RS&Pt+1 is the return on the S&P in month t+1 and Tbill is the Tbill return at month t, both RS&P and Tbill are 'var MORE
Technology / Television (TV) / Zoom Lens (Variable Focal Length): A lens with a variable focal length, allowing the operator to shift immediately and continuously from wide angle to telephoto (or vice versa) without switching lenses. MORE
Business / Finance / Normal Random Variable: A random variable that has a normal probability distribution. MORE
Business / Finance / Discrete Variable: A random variable that can take only a certain specified set of individual possible values-for example, the positive integers 1, 2, 3, . . . MORE
Technology / Programming / Variable Assignment: Variable assignment is the assignment of a value to a variable. For instance: int val:, val = 5:, // assign to val the value 5 before a value is assigned, the variable is null, which means it has no v MORE