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. 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.
Source: Websters Dictionary
(01 Mar 1998)