| Word | Definitions | Synonyms |
|---|---|---|
| conodont | (noun) small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes | - |
| (noun) the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta | - | |
| conoid | (noun) a shape whose base is a circle and whose sides taper up to a point | Synonyms: cone, cone shape |