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labium

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la⋅bi⋅um

[ley-bee-uhm]
–noun, plural -bi⋅a [-bee-uh] .
1. a lip or liplike part.
2. Anatomy.
a. a lip or lip-shaped structure or part.
b. any of the folds of skin bordering the vulva.
3. Botany. the lower lip of a bilabiate corolla.
4. Entomology. the posterior, unpaired member of the mouthparts of an insect, formed by the united second maxillae.

Origin:
1590–1600; < L: lip, akin to lambere to lick, lap 3 . See labrum 1 , lip
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Based on the Random House Dictionary, © Random House, Inc. 2010.
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la·bi·um   (lā'bē-əm)   
n.   pl. la·bi·a (-bē-ə)
  1. Anatomy Any of four folds of tissue of the female external genitalia.

  2. Zoology

    1. A liplike structure, such as that forming the floor of the mouth of certain invertebrates, especially insects.

    2. The inner margin of the opening of a gastropod shell.

  3. Botany One of the liplike divisions of a labiate corolla.


[Latin, lip; see leb- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: la·bi·um
Pronunciation: 'lA-bE-&m
Function: noun
Inflected Form: plural la·bia /-&/
1 : any of the folds at the margin of the vulva —compare LABIA MAJORA, LABIA MINORA
2 : a lower mouthpart of an insect that is formed by the second pair of maxillae united inthe midline
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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labium la·bi·um (lā'bē-əm)
n. pl la·bi·a (-bē-ə)

  1. A lip or lip-shaped anatomical structure.

  2. Any of four folds of tissue of the female external genitalia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
labium   (lā'bē-əm)  Pronunciation Key 
Plural labia
Either of two pairs of folds of tissue that make up part of the external genitalia of female mammals.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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