immūtātĭo (inm-), ōnis, f. [immuto],
I a change , exchanging , interchange , substitution of one thing for another in speech: verborum, Cic. Ac. 2, 6, 16: ordinis, id. de Or. 3, 44, 176: si verborum immutationibus utantur, quos appellant τρόπους, id. Brut. 17, 69.—
B Esp., rhet. t. t., metonymy , the indirect naming of any thing = ἀλλοιωσις, μετωνυμία: immutationes nusquam crebriores, i. e. metonymies , id. Or. 27, 94; id. de Or. 3, 54, 207; cf. Quint. 9, 1, 35: faciebat barbarismos immutatione, cum c pro g uteretur, id. 1, 5, 12; cf. ib. 6.