The Collaborative International Dictionary of English v.0.48:

Bicipital \Bi*cip"i*tal\, a. [L. biceps, bicipitis: cf. F.
   bicipital. See Biceps.]
   1. (Anat.)
      (a) Having two heads or origins, as a muscle.
      (b) Pertaining to a biceps muscle; as, bicipital furrows,
          the depressions on either side of the biceps of the
          arm.
          [1913 Webster]

   2. (Bot.) Dividing into two parts at one extremity; having
      two heads or two supports; as, a bicipital tree.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bicipital
    adj 1: having two heads or points of origin as a biceps