The crossword solution for the term 'GLOW, IN A WAY' is 'FLUORESCE' (9 letters). Fluorescence is a type of luminescence, which is the emission of light by a substance that has not been heated. Fluorescence occurs when an atom or molecule absorbs energy from a source, such as ultraviolet light, and then emits light at a lower energy level. This process is often used in scientific research and in everyday life, such as in fluorescent lights and glow-in-the-dark toys.