The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device that emits a BEAM of light, usually in the form of a narrow, intense BEAM of monochromatic light. The BEAM is created by stimulating atoms to emit photons. The crossword solutions for the term LASER are BEAM (4 letters), DISC (4 letters), and PEN (3 letters). BEAM refers to the narrow, intense BEAM of light emitted by a laser. DISC is a reference to the DISC-shaped laser devices used in many applications, such as CD players and laser printers. Finally, PEN is a reference to the laser pointer, a handheld device that emits a small BEAM of light.