noun, plural: trabeculae
A small supporting structure in the form of a beam, strut or rod.
Trabeculae are often composed of fibrous tissue, mainly of collagen. They may also be composed of other materials, such as bone or muscle. They may form in various organ, such as the heart, spleen, bone and penis.
Word origin: from Latin trabēcula, diminutive of trabs, trab-, beam.
Related forms: trabeculation (noun), trabecular (adjective), trabeculate (adjective).