Infundibulum /(?)/

In·fun·dib·u·lum

Infundibulum

n.

pl. Infundibula, Infundibulums

  1. A funnel-shaped or dilated organ or part; as, the infundibulum of the brain, a hollow, conical process, connecting the floor of the third ventricle with the pituitary body; the infundibula of the lungs, the enlarged terminations of the bronchial tubes. (Anat.)
  2. A central cavity in the Ctenophora, into which the gastric sac leads. (Zool.)