Di"a*tribe [L. diatriba a learned discussion, Gr. , prop., a wearing away of time, fr. to rub away, spend time; through + to rub: cf. L. terere, F. trite: cf. F. diatribe.]
A prolonged or exhaustive discussion; especially, an acrimonious or invective harangue; a strain of abusive or railing language; a philippic.
The ephemeral diatribe of a faction.
© Webster 1913.