Strong's #2457: chel'ah (pronounced khel-aw')

from 2456; properly, disease; hence, rust:--scum.

Brown-Driver-Briggs Hebrew Lexicon:

chel'âh

1) rust, scum

Part of Speech: noun feminine

Relation: from H2456

Usage:

This word is used 5 times:

 

Ezekiel 24:6: "city, to the pot whose scum is therein, and whose scum is not gone out of"
Ezekiel 24:6: "to the pot whose is therein, and whose scum is not gone out of it! bring it out"
Ezekiel 24:11: "and that the filthiness of it may be molten it, that the scum of it may be consumed."
Ezekiel 24:12: "She hath wearied herself with lies, and her great scum went not forth out of her: her scum"
Ezekiel 24:12: "scum went not forth out of her: her scum shall be in the fire."