Strong's Definition
from 2135; properly, transparency, i.e. glass
KJV Usage: crystal
STEPBible — Tyndale Abridged Hebrew Lexicon
זְכוּכִית (ze.khu.khit) — glass. glass, crystal, fine glass
UBS Dictionary of Biblical Hebrew
noun f · זכך
Substances
glass = a hard, more or less transparent substance ◄ produced by fusing sand with soda and lime; ≈ considered of high value
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
זְכוּכִית n.[f.] glass; as precious, yet of less value than wisdom Jb 28:17. ref