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labrum

1
[ ley-bruhm, lab-ruhm ]
/ ˈleɪ brəm, ˈlæb rəm /
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noun, plural la·bra [ley-bruh, lab-ruh]. /ˈleɪ brə, ˈlæb rə/.
a lip or liplike part.
Zoology.
  1. the anterior, unpaired member of the mouthparts of an arthropod, projecting in front of the mouth.
  2. the outer margin of the aperture of a shell of a gastropod.
Anatomy. a ring of cartilage about the edge of a joint surface of a bone.
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Origin of labrum

1
1810–20; <Latin: lip; akin to labium

Other definitions for labrum (2 of 2)

labrum2
[ ley-bruhm ]
/ ˈleɪ brəm /

noun, plural la·bra [ley-bruh]. /ˈleɪ brə/. Archaeology.
an ornamented bathtub of ancient Rome.

Origin of labrum

2
<Latin lābrum basin, contraction of lavābrum bathtub, equivalent to lavā(re) to wash + -brum instrumental suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use labrum in a sentence

British Dictionary definitions for labrum

labrum
/ (ˈleɪbrəm, ˈlæb-) /

noun plural -bra (-brə)
a lip or liplike part, such as the cuticular plate forming the upper lip of insects

Word Origin for labrum

C19: New Latin, from Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for labrum

labrum
[ lābrəm ]

n. pl. la•bra (-brə)
A lip-shaped anatomical edge, rim, or structure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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