Source : Webster's Revised Unabridged Dictionary (1913)

Xiphoid \Xiph"oid\ (?; 277), a. [Gr. ? sword-shaped; xi`fos a
   sword + ? form, shape: cf. F. xiphoide.] (Anat.)
   (a) Like a sword; ensiform.
   (b) Of or pertaining to the xiphoid process; xiphoidian.