vermiform : Idioms & Phrases

• noun a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  cecal appendage; appendix; vermiform appendix.
  

WordNet

• (Anat.), a slender blind process of the cæcum 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.

Webster 1913

• noun a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
  cecal appendage; appendix; vermiform appendix.
  

WordNet