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infundibulum - 5 dictionary results

in⋅fun⋅dib⋅u⋅lum

  [in-fuhn-dib-yuh-luhm]
Use infundibulum in a Sentence
–noun, plural -la  [-luh] . Anatomy.
1. a funnel-shaped organ or part.
2. a funnel-shaped extension of the hypothalamus connecting the pituitary gland to the base of the brain.
3. a space in the right ventricle at the base of the pulmonary artery.
Origin:
1700–10; < NL, L: funnel, equiv. to infundi- (s. of infundere to pour into; see in- 2 , found 3 ) + -bulum instrumental suffix; cf. infuse

Related forms:
in⋅fun⋅dib⋅u⋅lar, in⋅fun⋅dib⋅u⋅late  [in-fuhn-dib-yuh-leyt] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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in·fun·dib·u·lum   (ĭn'fən-dĭb'yə-ləm)   
n.   pl. in·fun·dib·u·la (-lə)
Any of various funnel-shaped bodily passages, openings, structures, or parts, especially:
a. The stalk of the pituitary gland.

[Latin, funnel, from īnfundere, to pour in; see infuse.]
in'fun·dib'u·lar (-lər), in'fun·dib'u·late' (-lāt', -lĭt) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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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.

2. (Zo["o]l.) (a) A central cavity in the Ctenophora, into which the gastric sac leads. (b) The siphon of Cephalopoda. See Cephalopoda.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Main Entry: in·fun·dib·u·lum
Pronunciation: "in-(")f&n-'dib-y&-l&m
Function: noun
Inflected Form: plural in·fun·dib·u·la /-l&/
: any of various conical or dilated organs or parts: a : the hollow conical process of gray matterthat 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 stalk b : anyof the small spaces having walls beset with air sacs in which the bronchial tubes terminate in the lungs c : CONUSARTERIOSUS d : the passage by which the anterior ethmoidal air cells and the frontal sinuses communicate with the nose e : the abdominal opening of afallopian tube
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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