| Word | Definitions | Synonyms |
|---|---|---|
| ethmoid | (noun) one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity | Synonyms: ethmoid bone |
| prismoid | (noun) a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms | - |
| sesamoid | (noun) any of several small round bones formed in a tendon where it passes over a joint | Synonyms: os sesamoideum, sesamoid bone |