BDB3915
כִּבְשָׁן noun masculine kiln, for lime or pottery (so Ki, AW; MishnaKel viii. 9; √ and original meaning dubious; according to Thes as subduing, reducing its contents, compare igne ferrum domatur PlinNat. Hist. 36. 27) — always absolute; only in ׳ קִיטוֺר הַכּ Gen 19:28 ( J ; simile of smoke of כִּכָּר, Sodom and Gomorrah); ׳ עֶשֶׁן הַכּ Exod 19:18 ( E ; simile of smoke of Sinai); ׳ פִּיחַ כ ashes of kiln Exod 9:8, compare Exod 9:10 (both P ).