Webster’s Revised Unabridged Dictionary · 1913
Sesamoid
Ses′a·moid (sĕs′ȧ·moid), a. [Gr. σησαμοειδής like sesame; σήσαμον sesame + εἶδος form: cf. F. sésamoïde.] 1. Resembling in shape the seeds of sesame.
2. (Anat.) Of or pertaining to the sesamoid bones or cartilages; sesamoidal.
Sesamoid bones, Sesamoid cartilages (Anat.), small bones or cartilages formed in tendons, like the patella and pisiform in man.
Ses′a·moid, n. (Anat.) A sesamoid bone or cartilage.