κατάκλασις

English (LSJ)

εως, ἡ,

   A forced position, τῶν ἄρθρων Hp.Epid.6.1.15 (pl.).    2 κ. ὄμματος drooping of the eyelid, Id.Prorrh.1.84 (vv. ll. -κλισις, -κλεισις), cf. Epid.6.1.15, Gal.16.675.    II refraction of light or sound, opp. ἀνάκλασις (reflexion), Arist.Pr.901b20, 904b30, Cleom.2.6.