noun, plural trabeculae [truh-bek-yuh-lee] .
Anatomy, Botany. a structural part resembling a small beam or crossbar.
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.

1815–25; < Neo-Latin trabēcula, Latin: little beam, equivalent to trabē(s) beam + -cula -cule1

trabecular, trabeculate [truh-bek-yuh-lit, -leyt] , adjective
intertrabecular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
trabecula (trəˈbɛkjʊlə)
n , pl -lae
1.  any of various rod-shaped structures that divide organs into separate chambers
2.  any of various rod-shaped cells or structures that bridge a cavity, as within the capsule of a moss or across the lumen of a cell
[C19: via New Latin from Latin: a little beam, from trabs a beam]

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American Heritage
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
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