trabecula(redirected from Septomarginal trabecula)
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Related to Septomarginal trabecula: conus arteriosus, pulmonary valve, aortic vestibule, Crista terminalis, Pectinate muscles, Moderator band
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.
[Latin trabēcula, little beam or bar, diminutive of trabs, trab-, beam; see treb- in Indo-European roots.]
n, pl -lae (-ˌliː)
1. (Anatomy) any of various rod-shaped structures that divide organs into separate chambers
2. (Botany) 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]
traˈbecular, traˈbeculate, traˈbecuˌlated adj
tra•bec•u•la(trəˈbɛk yə lə)
n., pl. -lae (-ˌli)
1. a structural body part that resembles a beam or a crossbar.
2. any of the barlike tissue structures that extend across the cavity in a plant duct or sac, as in the sporangium of a moss.
[1815–25; < New Latin trabēcula, Latin: little beam]
tra•bec′u•lar, tra•bec′u•late (-lɪt, -ˌleɪt) adj.