Also called control. Statistics. a person, group, event, etc., that is used as a constant and unchanging standard of comparison in scientific experimentation.Compare dependent variable(def 2), independent variable(def 2).
(in computer programming) a variable that is used to regulate the flow of control, or order of execution, generally the number of times a loop will execute.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019