\Syn"chy*sis\, n. [NL., fr. Gr. ?, fr. ? to confound; sy`n with + ? to pour.] A derangement or confusion of any kind, as of words in a sentence, or of humors in the eye. {Sparkling synchysis} (Med.), a condition in which the vitreous humor is softened and contains sparkling scales of cholesterin.