Not inherent or essential; originating from outside; external. Extrinsic factors such as temperature can influence enzyme activity.
(Psychology, business) Of rewards or motivations: coming from outside rather than from within the person. Extrinsic rewards like bonuses and promotions motivated the employees to work harder.
(Anatomy) Of a muscle: acting on a part from outside that part. The extrinsic muscles of the eye control its movement.