Definition of infundibulum
: any of various funnel-shaped organs or parts: such asa : the hollow conical process of gray matter connecting the pituitary gland to the hypothalamusb : the calyx of a kidneyc : the abdominal opening of a fallopian tube
Medical Definition of infundibulum
: any of various conical or dilated organs or parts:a: the hollow conical process of gray matter that is borne on the tuber cinereum and constitutes the stalk of the neurohypophysis by which the pituitary gland is continuous with the brain—called also neural stalkb: any of the small spaces having walls beset with air sacs in which the bronchial tubes terminate in the lungsc: conus arteriosusd: the passage by which the anterior ethmoidal air cells and the frontal sinuses communicate with the nosee: the abdominal opening of a fallopian tube
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