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infundibulum in·fun·dib·u·lum (ĭn'fən-dĭb'yə-ləm)
n. pl. in·fun·dib·u·la (-lə)
A funnel or funnel-shaped structure or passage.
The infundibulum of the fallopian tube.
The expanding portion of a calix as it opens into the pelvis of the kidney.
See conus arteriosus.
A termination of a bronchiole in the alveolus.
Termination of the cochlear canal beneath the cupola.
The funnel-shaped, unpaired prominence of the base of the hypothalamus behind the optic chiasm, continuous below with the stalk of the pituitary gland.