Opisthopulmonate

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Opisthopulmonate \O*pis`tho*pul"mo*nate\, a.[Gr. 'o`pisqen
     behind + E. pulmonate.] (Zool.)
     Having the pulmonary sac situated posteriorly; -- said of
     certain air-breathing Mollusca.
     [1913 Webster]