D defs.my
Menu ☰
Entry 1 sense Webster, 1913

London smoke

· Lon·don smoke · IPA
01 A neutral tint given to spectacles, shade glasses for optical instruments, etc., which reduces the intensity without materially changing th…
  1. 1.
    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.