noun a reptile having procoelian vertebrae; one of the procoelia.
2. procoelian ·adj concave in front; as, procoelian vertebrae, which have the anterior end of the centra concave and the posterior convex.
noun a reptile having procoelian vertebrae; one of the procoelia.
2. procoelian ·adj concave in front; as, procoelian vertebrae, which have the anterior end of the centra concave and the posterior convex.
Webster English vocab. Английский словарь Webster. 2012