Laser
来自Big Physics
1960s: acronym from light amplification by stimulated emission of radiation, on the pattern of maser.
wiktionary
From LASER, acronym of Light Amplification by the Stimulated Emission of Radiation. Coined by American physicist Gordon Gould in 1957. Originally called an optical maser.
From Latin laser.
etymonline
laser (n.)
1960, acronym for "light amplification by stimulated emission of radiation," on pattern of maser (1955). A corresponding verb, lase, was coined by 1962. Related: Lasered; lasering. Laser disc recorded from 1980. Earlier laser was the name of a type of gum-resin from North Africa used medicinally (1570s), from Latin; still earlier it was an Old English and Middle English name for some weed, probably cockle.
