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[vahy-brak-yuh-luh m] /vaɪˈbræk yə ləm/
noun, plural vibracula
[vahy-brak-yuh-luh] /vaɪˈbræk yə lə/ (Show IPA)
any of the modified polyps on the surface of certain bryozoan colonies, having a long, whiplike appendage that clears away debris.
Origin of vibraculum
1850-55; < New Latin, equivalent to Latin vibrā(re) to shake + -culum -cule2
Related forms
vibracular, adjective
vibraculoid, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for vibraculum


noun (pl) -la (-lə)
(zoology) any of the specialized bristle-like polyps in certain bryozoans, the actions of which prevent parasites from settling on the colony
Derived Forms
vibracular, adjective
vibraculoid, adjective
Word Origin
C19: from New Latin, from Latin vibrāre to brandish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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