noun, plural infundibula [in-fuhn-dib-yuh-luh] . Anatomy.
a funnel-shaped organ or part.
a funnel-shaped extension of the hypothalamus connecting the pituitary gland to the base of the brain.
a space in the right ventricle at the base of the pulmonary artery.

1700–10; < Neo-Latin, Latin: funnel, equivalent to infundi- (stem of infundere to pour into; see in-2, found3) + -bulum instrumental suffix; cf. infuse

infundibular, infundibulate [in-fuhn-dib-yuh-leyt] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
infundibulum (ˌɪnfʌnˈdɪbjʊləm)
n , pl -la
anatomy any funnel-shaped part, esp the stalk connecting the pituitary gland to the base of the brain
[C18: from Latin: funnel, from infundere to infuse]

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American Heritage
Medical Dictionary

infundibulum in·fun·dib·u·lum (ĭn'fən-dĭb'yə-ləm)
n. pl. in·fun·dib·u·la (-lə)

  1. A funnel or funnel-shaped structure or passage.

  2. The infundibulum of the fallopian tube.

  3. The expanding portion of a calix as it opens into the pelvis of the kidney.

  4. See conus arteriosus.

  5. A termination of a bronchiole in the alveolus.

  6. Termination of the cochlear canal beneath the cupola.

  7. The funnel-shaped, unpaired prominence of the base of the hypothalamus behind the optic chiasm, continuous below with the stalk of the pituitary gland.

in'fun·dib'u·lar (-lər) or in'fun·dib'u·late' (-lāt', -lĭt) adj.
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