Wiktionary
anaclasis
n. 1 The substitution of a long for a short syllable (or vice versa) to break up the rhythm of a poem. 2 reflection or refraction of light or sound. 3 (context medicine English) The forced bending of a joint.
Usage examples of "anaclasis".
I have ventured on a license which Catullus does not admit, but which is, I think, justified by other and earlier specimens of the metre, an anaclasis of the original Ionic a minore at the end of the line.