from
The Collaborative International Dictionary of English v.0.48
Infundibulum \In`fun*dib"u*lum\, n.; pl. L. {Infundibula}, E.
{Infundibulums}. [L., a funnel, from infundere to pour in or
into. See {Infuse}.]
1. (Anat.) 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.
[1913 Webster]
2. (Zool.)
(a) A central cavity in the Ctenophora, into which the
gastric sac leads.
(b) The siphon of Cephalopoda. See {Cephalopoda}.
[1913 Webster]