Definition of: trabecula

(trə·bek′yə·lə) noun plural ·lae (-lē)
1. A small supporting band or bar.
2. Anat. The interwoven bands of connective tissue that form the supporting framework of an organ, as the spleen.
3. Bot. A row or plate of sterile cells extending across the cavity in the sporangium of a moss. [<L, dim. of trabs, trabis a beam]
—tra·bec′u·lar adjective