Noah Webster's Dictionary (n.) A mirror made of glass on which has been placed a backing of some reflecting substance, as quicksilver. Int. Standard Bible Encyclopedia LOOKING-GLASS look'-ing-glas (Exodus 38:8 the King James Version margin "brasen glasses"). See GLASS; MIRROR.

Multi-Version Concordance Looking-glass (1 Occurrence) Job 37:18 Will you, with him, make the skies smooth, and strong as a polished looking-glass? (BBE WBS)