fluctuātio, ōnis, f. id., a vibrating to and fro, a fluctuation (not ante-Aug., and very rare). Lit., a wavering motion, agitation: tunc artus trepidi, inquietae manus, totius corporis fluctuatio, Sen. de Ira, 2, 35, 3.

— Trop., wavering, hesitation, vacillation of the mind: in ea fluctuatione animorum opprimi incautos posse, Liv. 9, 25, 6; Vulg. Sirach, 40, 4.