Antonyms
Synonyms
1. os_sesamoideum
noun. any of several small round bones formed in a tendon where it passes over a joint.
Synonyms
3. OS
noun. (computer science) software that controls the execution of computer programs and may provide various services.
Antonyms
4. Os
noun. a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known.