The Collaborative International Dictionary of English v.0.48:
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. [1913 Webster]WordNet (r) 3.0 (2006):
falciform adj 1: curved like a sickle; "a falcate leaf"; "falcate claws"; "the falcate moon" [syn: falcate, falciform, sickle- shaped]