Noah Webster's Dictionary 1. (n.) The extraneous matter or impurities which rise to the surface of liquids in boiling or fermentation, or which form on the surface by other means; also, the scoria of metals in a molten state; dross. 2. (v.) refuse; recrement; anything vile or worthless. 3. (v. t.) To take the scum from; to clear off the impure matter from the surface of; to skim. 4. (v. t.) To sweep or range over the surface of. 5. (v. i.) To form a scum; to become covered with scum. Also used figuratively. Int. Standard Bible Encyclopedia SCUM skum (chel'ah; Septuagint ios, "poison" or "verdigris"; compare Plato Rep. 609a): The word is only found in Ezekiel 24:6, 11, 12, where the Revised Version (British and American) translates it "rust." The fact, however, that the caldron is of brass and therefore not liable to rust, and the astonishment expressed that the fire did not remove it (24:12), would seem to point to the preferability of the translation "scum," the residue of dirt adhering to the caldron from previous use.

Multi-Version Concordance Scum (4 Occurrences) 1 Corinthians 4:13 Being defamed, we entreat. We are made as the filth of the world, the dirt wiped off by all, even until now. (See NAS NIV) Ezekiel 24:6 Wherefore thus saith the Lord GOD; Woe to the bloody city, to the pot whose scum is therein, and whose scum is not gone out of it! bring it out piece by piece; let no lot fall upon it. (KJV WBS YLT) Ezekiel 24:11 Then set it empty upon the coals thereof, that the brass of it may be hot, and may burn, and that the filthiness of it may be molten in it, that the scum of it may be consumed. (KJV WBS YLT) Ezekiel 24:12 She hath wearied herself with lies, and her great scum went not forth out of her: her scum shall be in the fire. (KJV WBS YLT)