Source : Webster's Revised Unabridged Dictionary (1913)

Falciform \Fal"ci*form\, a. [L. falx, falcis, a sickle + -form:
   cf. F. falciforme.]
   Having the shape of a scithe or sickle; resembling a reaping
   hook; as, the falciform ligatment of the liver.

Source : WordNet®

falciform
     adj : curved like a sickle; "a falcate leaf"; "falcate claws";
           "the falcate moon" [syn: {falcate}, {sickle-shaped}]