labrum

[ley-bruhm, lab-ruhm] Origin

la·brum

1[ley-bruhm, lab-ruhm]
noun, plural la·bra [ley-bruh, lab-ruh] .
1.
a lip or liplike part.
2.
Zoology.
a.
the anterior, unpaired member of the mouthparts of an arthropod, projecting in front of the mouth.
b.
the outer margin of the aperture of a shell of a gastropod.
3.
Anatomy. a ring of cartilage about the edge of a joint surface of a bone.

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

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Labrum is always a great word to know.
So is fish. Does it mean:
cold-blooded vertebrate such as turtles, snakes, lizards, crocodilians, amphisbaenians and tuatara
cold-blooded aquatic vertebrates with gills, often have fins and elongated body covered with scales
Dictionary.com Unabridged

la·brum

2[ley-bruhm]
noun, plural la·bra [-bruh] . Archaeology.
an ornamented bathtub of ancient Rome.

Origin:
< Latin lābrum basin, contraction of lavābrum bathtub, equivalent to lavā(re) to wash + -brum instrumental suffix
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Collins
World English Dictionary
labrum (ˈleɪbrəm, ˈlæb-)
 
n , pl -bra
a lip or liplike part, such as the cuticular plate forming the upper lip of insects
 
[C19: New Latin, from Latin]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

labrum
lip or lip-like part, 1816, in various anatomical and zoological uses, from L. labrum, cognate with labium "lip" (see lip).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

labrum la·brum (lā'brəm)
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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