laserWiktionary 原文中文来自 ECDICTn.激光1词源 1演变路径（由近及远）英语继承自 ←中古英语 light继承自 ←古英语 lēoht继承自 ←原始西日耳曼语 *leuht继承自 ←原始日耳曼语 *leuhtą继承自 ←原始印欧语 *lewktom词源说明From LASER, acronym of light amplification by stimulated emission of radiation. Coined by American physicist Gordon Gould in 1957. Originally called an optical maser.释义（英文）名词 NounA device that produces a monochromatic, coherent beam of light.A beam of light produced by such a device2词源 2演变路径（由近及远）英语借自 ←拉丁语 laser词源说明Borrowed from Latin laser.释义（英文）名词 NounA gum resin obtained from certain umbelliferous plants.Such a plant.词族相关词（2）