Extrinsic /(?)/

Ex·trin·sic

Extrinsic

a.
  1. Not contained in or belonging to a body; external; outward; unessential; -- opposed to intrinsic.
    The extrinsic aids of education and of artificial culture.
  2. Attached partly to an organ or limb and partly to some other part; -- said of certain groups of muscles. Opposed to intrinsic. (Anat.)