a small sac or baglike body, as an air-filled cavity in a seaweed.
Botany. a thin bladderlike pericarp or seed vessel.
Anatomy. the larger of two sacs in the membranous labyrinth of the internal ear. Compare saccule ( def 1 ).

1725–35; < Latin utriculus, diminutive of uter bag; see -cle1

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World English Dictionary
utricle or utriculus (ˈjuːtrɪkəl, juːˈtrɪkjʊləs)
n , pl utricles, utriculi
1.  anatomy Compare saccule the larger of the two parts of the membranous labyrinth of the internal ear
2.  botany the bladder-like one-seeded indehiscent fruit of certain plants, esp sedges
[C18: from Latin ūtriculus diminutive of ūter bag]
utriculus or utriculus (ˈjuːtrɪkəl, juːˈtrɪkjʊləs, juːˈtrɪkjʊˌlaɪ)
[C18: from Latin ūtriculus diminutive of ūter bag]
u'tricular or utriculus
u'triculate or utriculus

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American Heritage
Medical Dictionary

utricle u·tri·cle1 (yōō'trĭ-kəl)
A membranous sac contained within the labyrinth of the inner ear and connected with the semicircular canals.

utricle 2
A small vestigial blind pouch of the prostate gland; the prostatic utricle.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
At maturity each flower produces a tiny round fruit called a utricle.
A utricle is like an achene, but it has a compound ovary, rather than a simple one.
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