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1. Physics Expressing, exhibiting, or relating to covariant theory.
2. Statistics Varying with another variable quantity in a manner that leaves a specified relationship unchanged.
(Mathematics) a variant that changes leaving interrelations with another variant (or variants) unchanged
(Mathematics) changing in such a way that interrelations with another variant (or variants) remain unchanged
co•var•i•ant(koʊˈvɛər i ənt)
(of one magnitude with respect to another) varying in accordance with a fixed mathematical relationship.