/duy"euh truyb'/ , n.
a bitter, sharply abusive denunciation, attack, or criticism: repeated diatribes against the senator.
[ 1575-85; diatriba diatribé pastime, study, discourse, deriv. of diatríbein to rub away ( dia- DIA- + tríbein to rub) ]
Syn . tirade, harangue.