Lewis & Short

jăcŭlātĭo, ōnis, f. [jaculor], a throwing, casting, hurling.

  1. I. Lit.: fulminatio est jaculatio cum ictu, Sen. Q. N. 2, 12, 1: equestris, Plin. 8, 42, 65, § 162: fulgoris, App. de Mundo, p. 64, 22.
  2. II. Trop.: in hac veluti jaculatione verborum, Quint. 6, 3, 43.