The term 'give off coherent light' can be summarized by the crossword solution 'LASE, ' which is an acronym for 'Light Amplification by Stimulated Emission of Radiation.' This is a process in which photons are emitted from an atom or molecule, resulting in a beam of light that is highly concentrated and has a single wavelength. This type of light is used in many applications, such as laser pointers, laser cutting, and laser surgery.