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parameter

noun [C usually plural]
 
 
/pəˈræm.ɪ.tər/ US  /-ə.t̬ɚ/

Definition

a set of facts or a fixed limit that establishes or limits how something can or must happen or be done: The researchers must keep within the parameters of the experiment. The central office sets/establishes the parameters that guide policy at the local level.Range and limits
(Definition of parameter noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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