- 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.
Origin of trabecula
1815–25; < New Latin trabēcula, Latin: little beam, equivalent to trabē(s) beam + -cula -cule1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
Word Origin for trabecula
C19: via New Latin from Latin: a little beam, from trabs a beam
- 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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.