[ ley-bruh m, lab-ruh m ]
/ ˈleɪ brəm, ˈlæb rəm /

noun, plural la·bra [ley-bruh, lab-ruh] /ˈleɪ brə, ˈlæb rə/.

a lip or liplike part.
  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

1810–20; < Latin: lip; akin to labium

Definition for labra (2 of 2)

[ ley-bruh m ]
/ ˈleɪ brəm /

noun, plural la·bra [ley-bruh] /ˈleɪ brə/. Archaeology.

an ornamented bathtub of ancient Rome.

Origin of labrum

< Latin lābrum basin, contraction of lavābrum bathtub, equivalent to lavā(re) to wash + -brum instrumental suffix Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for labra

  • T is considered to be the tepidarium with four warm baths taken out of its four angles, and two labra on its two flanks.

    History of Sanitation|John Joseph Cosgrove
  • Labra, the autonomist deputy for Cuba, and no one has forgotten the proposition presented to the Congress by Sr.

    The Katipunan|J. Brecknock Watson (AKA Francis St. Clair)
  • Now Labra was never seen save by one man, once a year, without a hood that covered his head and ears.

British Dictionary definitions for labra (1 of 2)

/ (ˈleɪbrə, ˈlæb-) /


the plural of labrum

British Dictionary definitions for labra (2 of 2)

/ (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 labra

[ 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.