Ex*trin"sic (?), a. [L. extrinsecus; exter on the outside + secus otherwise, beside; akin to E. second: cf. F. extrinseque. See Exterior, Second.]
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. Anat.
Attached partly to an organ or limb and partly to some other part -- said of certain groups of muscles. Opposed to intrinsic.
© Webster 1913.