'Diatribe' definitions:

Definition of 'diatribe'

From: WordNet
noun
Thunderous verbal attack [syn: fulmination, diatribe]

Definition of 'Diatribe'

From: GCIDE
  • Diatribe \Di"a*tribe\ (?; 277), n. [L. diatriba a learned discussion, Gr. ?, prop., a wearing away of time, fr. ? to rub away, spend time; dia` 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. [1913 Webster]
  • The ephemeral diatribe of a faction. --John Morley. [1913 Webster]