פַּלְגְּס, (πάλλαξ, πάλληξ, prob. of Semitic origin; cmp. פַּלְגִּיסָא, a. פִּלֶּגֶשׁ) a youth in the intermediate stage between boyhood and maturity; trnsf. a sheep beyond the age of כֶּבֶשׂ and below that of אַיִל (v. ניּקָּד). Par. I, 3 רבי טרפין קורהו פ׳ R. T. named such a sheep of thirteen months a pallax. Ḥull. 23ᵃ. Tosef. ib. I, 14 הפ׳ בזה ובזה פסול the pallax is unfit for sacrifice either as כבש or as איל.—Pl. ch. פַּלְגִּיסִין. Targ. Ps. XXXVII, 20 (h. text כרים).