Rod-shaped structures of fibrous tissue that divide an organ into parts (as in the penis) or stabilize the structure of an organ (as in the spleen)

Wikipedia Word definitions in Wikipedia
A trabecula (plural trabeculae , from Latin for "small beam") is a small, often microscopic, tissue element in the form of a small beam , strut or rod , generally having a mechanical function, and usually composed of dense collagenous tissue (such as the ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Trabecula \Tra*bec"u*la\, n.; pl. Trabecul[ae] (-l[=e]). [L., a little beam.] (Anat.) A small bar, rod, bundle of fibers, or septal membrane, in the framework of an organ part.

WordNet Word definitions in WordNet
n. rod-shaped structures of fibrous tissue that divide an organ into parts (as in the penis) or stabilize the structure of an organ (as in the spleen) [also: trabeculae (pl)]

Wiktionary Word definitions in Wiktionary
n. 1 A small supporting beam. 2 (context anatomy English) A small mineralized spicule that forms a network in spongy bone. 3 (context anatomy English) A fibrous strand of connective tissue that supports it in place.