Vermiform \Ver"mi*form\, a. [L. vermis a worm + -form.]

Resembling a worm in form or motions; vermicular; as, the vermiform process of the cerebellum.

Vermiform appendix (Anat.), a slender blind process of the c[ae]cum in man and some other animals; -- called also vermiform appendage, and vermiform process. Small solid bodies, such as grape seeds or cherry stones, sometimes lodge in it, causing serious, or even fatal, inflammation. See Illust. under Digestion.

Source: Webster's Revised Unabridged Dictionary (1913)