כִּילּוּי m. (כָּלָה) 1) finishing. Sifra K’dosh. ch. I; Y. Peah IV, 18ᵇ בשעת הכ׳ at the time when the end of the field is cut (with ref. to תכלה, Lev. XIX, 9); a. e. —2) extinction, destruction. Lev. R. s. 7, beg. (ref. to שמד, Deut. IX, 20) כ׳ בנים וכ׳ the extinction of his family; ib. s. 10. Mekh. Bo s. 8 מצות כִּילּוּייוֹ בכל דבר it (the leavened bread) may be destroyed in any manner, opp. מצות כ׳ בשריפה it must be destroyed by fire.