Lewis & Short

ēructātĭo, ōnis, f. [eructo],

  1. I. a casting or throwing upward (post-class. and rare): altera (exhalatio) arida est atque animae similis, quae terrenis eructationibus surgit, App. de Mundo, p. 60, 40.
  2. II. Transf., an utterance: judiciorum Dei per voces prophetarum, Hilar. in Psa. 41, 12.