Lewis & Short

ēlŏcūtĭo, ōnis, f. [eloquor].

  1. I. Prop., a speaking out, utterance, expression: pluralis, Dig. 22, 5, 12.
  2. II. Transf., in rhet. lang., oratorical delivery, elocution; the Gr. φράσις (cf.: locutio, dictio, stilus, etc.), Cic. Inv. 1, 7, 9; Quint. prooem. § 22; 8 prooem. § 13; 8, 1, 1 et saep.