Infundibulum
Infundibulum , noun
[Latin, a funnel, from infundere to pour in or into. See Infuse.]
1.
(Anatomy) 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.
2.
(a) (Zoology) A central cavity in the Ctenophora, into which the gastric sac leads.
(b)
(Zoology) The siphon of Cephalopoda. See Cephalopoda.