- Concave behind; -- applied especially to vertebræ in which the anterior end of the centrum is convex and the posterior concave.
- Hollow or concave behind, as a vertebra: placed on vertebrœ whoever systems or centra tend to be concave regarding the posterior face.
- Having opisthocœlian vertebræ, as a reptile; of or regarding the Opisthocœlia.
- A reptile with opisthocœlian vertebræ, or of the order Opisthocœlia.
- Definition for "opisthocoelian"
- Equivalent for "opisthocoelian"