קַיָּין, (denom. of קָאָה, with ref. to the effusion of semen) one having abnormally large testicles. Bekh. 44ᵇ משובן זה הק׳ (Ar. קיק) m’shubban is the ḳayyan. Ib. ק׳ בבצים (Ar. בעל קיק) ḳ. refers to the testicles; v. גְּרַבְתָּן.