Postcomminion :: Postcomminion (n.) The concluding portion of the communion service.
Postcomminion :: Postcomminion (n.) A prayer or prayers which the priest says at Mass, after the ablutions..
Postcommissure :: Postcommissure (n.) A transverse commisure in the posterior part of the roof of the third ventricle of the brain; the posterior cerebral commisure.
Postcornu :: Postcornu (n.) The posterior horn of each lateral ventricle of the brain.