Meaning of LASER in English

LASER

[la.ser] n, often attrib [light amplification by stimulated emission of radiation] (1960): a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating coherent electromagnetic radiation usu. in the ultraviolet, visible, or infrared regions of the spectrum

Merriam-Webster English vocab.      Английский словарь Merriam Webster.