Lightwave is a term that typically refers to electromagnetic radiation within the optical spectrum, or wavelength range between approximately 100 nanometers and one millimeter. Synonyms for lightwave may include terms such as optical radiation, electromagnetic wave, photon waves, or simply light. Other synonyms may be more specific to the type of lightwave, such as infrared radiation, ultraviolet light, or visible light. Optical communication is an area where the term lightwave is commonly used, and synonyms for lightwave in this context may include fiber optic technology, optical networking, or photonics. Overall, the term lightwave is closely related to concepts of electromagnetism, photons, and radiation.