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Definition of: parameter
(pə·ram′ə·tər) noun
1. Math. Any given constant or element whose values characterize one or more of the variables entering into a system of expressions, functions, etc.: A road gradient is a parameter of the performance of an automobile.
2. A fixed limit or guideline. [<NL parametrum <Gk. para- beside + metron a measure]
—par·a·met·ric (par′ə·met′rik) adjective
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