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trabecula

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Trabecula
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tra⋅bec⋅u⋅la

  [truh-bek-yuh-luh]
Use trabecula in a Sentence
–noun, plural -lae  [-lee] .
1. Anatomy, Botany. a structural part resembling a small beam or crossbar.
2. Botany. one of the projections from the cell wall that extends across the cavity of the ducts of certain plants, or the plate of cells across the cavity of the sporangium of a moss.
Origin:
1815–25; < NL trabēcula, L: little beam, equiv. to trabē(s) beam + -cula -cule 1

Related forms:
tra⋅bec⋅u⋅lar, tra⋅bec⋅u⋅late  [truh-bek-yuh-lit, -leyt] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Trabecula
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tra·bec·u·la   (trə-běk'yə-lə)   
n.   pl. tra·bec·u·lae (-lē')

  1. A small supporting beam or bar.

    1. Anatomy Any of the supporting strands of connective tissue projecting into an organ and constituting part of the framework of that organ.

    2. Any of the fine spicules forming a network in cancellous bone.


[Latin trabēcula, diminutive of trabs, trab-, beam; see treb- in Indo-European roots.]
tra·bec'u·lar adj.
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: tra·bec·u·la
Pronunciation: tr&-'bek-y&-l&
Function: noun
Inflected Form: plural tra·bec·u·lae /-"lE/ also tra·bec·u·las
1 : a small bar, rod, bundle of fibers, or septal membrane inthe framework of a bodily organ or part (as the spleen)
2 : one of a pair of longitudinally directed more or less curved cartilaginous rods in the developing skull of a vertebratethat develop under the anterior part of the brain on each side of the pituitary gland and subsequently fuse with each other and with the parachordal cartilages to form the base of the cartilaginouscranium
3 : any of the intersecting osseous bars occurring in cancellous bone
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

trabecula tra·bec·u·la (trə-běk'yə-lə)
n. pl. tra·bec·u·lae (-lē')

  1. Any of the supporting strands of connective tissue projecting into an organ and constituting part of the framework of that organ.

  2. Any of the fine spicules forming a network in cancellous bone.

tra·bec'u·lar adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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