Bible Dictionaries
London Smoke

Webster's Dictionary

A neutral tint given to spectacles, shade glasses for optical instruments, etc., which reduces the intensity without materially changing the color of the transmitted light.

Bibliography Information
Webster, Noah. Entry for 'London Smoke'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​l/london-smoke.html. 1828.