1. Not contained in or belonging to a body; external; outward; unessential; opposed to intrinsic. "The extrinsic aids of education and of artificial culture." (I. Taylor)

2. <anatomy> Attached partly to an organ or limb and partly to some other part said of certain groups of muscles. Opposed to intrinsic.

Origin: L. Extrinsecus; exter on the outside + secus otherwise, beside; akin to E. Second: cf. F. Extrinseque. See Exterior, Second.

(01 Mar 1998)