safelight

[ seyf-lahyt ]

noun

, Photography.

1. a darkroom light lights with a filter that transmits only those rays of the spectrum to which films, printing paper, etc., are not sensitive.

safelight

/ ˈseɪfˌlaɪt /

noun

1. photog a light that can be used in a room in which photographic material is handled, transmitting only those colours to which a particular type of film, plate, or paper is relatively insensitive

Word History and Origins

Origin of safelight¹

First recorded in 1900–05; safe + light ¹