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Pronunciation: in'fun-dib'yu-lum, -yu-la


  1. A funnel or funnel-shaped structure or passage.
  2. The expanding portion of a calyx as it opens into the renal pelvis.
  3. Termination of a bronchiole in the alveolus.
  4. Termination of the cochlear canal beneath the cupola.
  5. The funnel-shaped, unpaired prominence of the base of the hypothalamus behind the optic chiasm, enclosing the infundibular recess of the third ventricle and continuous below with the stalk of the hypophysis.

Synonym(s): infundibulum of uterine tube

[L. a funnel]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.