a missile with a guidance system that directs it toward targets emitting infrared radiation (as the emissions of a jet engine)

Having the wavelength in the infrared, having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end, Having the wavelength in the infrared, noun_ Infrared light or the infrared part of the spectrum, electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm

cook or heat in a microwave oven, transitive To cook (something) in a microwave oven, transitive To cook or heat (food) in a microwave oven, adjective_ Relating to or being electromagnetic radiation between radio waves and infrared waves in the electromagnetic spectrum, having frequencies between 300 megahertz and 300 gigahertz and wavelengths between 1 meter and 1 millimeter, noun_ A wave of microwave radiation, An electromagnetic wave with wavelength between that of infrared light and radio waves, a short electromagnetic wave (longer than infrared but shorter than radio waves); used for radar and microwave ovens and for transmitting telephone, facsimile, video and data

Any of various devices that generate light and often heat, especially, An electric device having a socket for a light bulb, especially a free-standing piece of furniture, A device that gives off ultraviolet, infrared, or other radiation, used for therapeutic purpose, a light bulb