noun, plural tra·bec·u·lae [truh-bek-yuh-lee] /trəˈbɛk yəˌli/.

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.

Nearby words

  1. tr.,
  2. tra,
  3. tra-la,
  4. trabeate,
  5. trabeated,
  6. trabecular bone,
  7. trabecular reticulum,
  8. trabeculoplasty,
  9. trabeculotomy,
  10. trabs

Origin of trabecula

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

Related formstra·bec·u·lar, tra·bec·u·late [truh-bek-yuh-lit, -leyt] /trəˈbɛk yə lɪt, -ˌleɪt/, adjectivein·ter·tra·bec·u·lar, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trabecular

British Dictionary definitions for trabecular


noun plural -lae (-ˌliː) anatomy botany

any of various rod-shaped structures that divide organs into separate chambers
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
Derived Formstrabecular or trabeculate, adjective

Word Origin for trabecula

C19: via New Latin from Latin: a little beam, from trabs a beam

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

Medicine definitions for trabecular



n. pl. tra•bec•u•lae (-lē′)

Any of the supporting strands of connective tissue projecting into an organ and constituting part of the framework of that organ.
Any of the fine spicules forming a network in cancellous bone.
Related formstra•becu•lar adj.

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