Definition of pachyodont in English:

pachyodont

Pronunciation /ˈpakɪə(ʊ)ˌdɒnt/

adjective

  • Having thick or massive teeth; specifically of, relating to, or designating (the dentition of) a bivalve mollusc characterized by one to three heavy, blunt teeth in the hinge of the shell, as typical of the extinct rudists (sometimes classified in an order Pachyodonta).

noun

rare
  • A pachyodont bivalve mollusc.

Origin

Late 19th century; earliest use found in The Century Dictionary. From pachy- + -odont.