Context: Infrared tracking, also known as infrared homing, refers to a passive missile guidance system, which uses the emission from a target of electromagnetic radiation in the infrared part of the spectrum to track it. Missiles that use infrared seeking are often referred to as "heat-seekers", since infrared (IR) is just below the visible spectrum of light in frequency and is radiated strongly by hot bodies. Many objects such as people, vehicle engines, and aircraft generate and retain heat, and as such, are especially visible in the infrared wavelengths of light compared to objects in the background.

Question: What is another term for infrared homing?
Answer: Infrared tracking

Question: What devices make use of infrared homing?
Answer: Missiles

Question: What is a common name for missiles that make use of infrared seeking?
Answer: heat-seekers

Question: Along with aircraft and people, what objects notably create and retain heat?
Answer: vehicle engines

Question: What does IR stand for?
Answer: infrared

Question: What is another term for heat seekers?
Answer: Unanswerable

Question: Besides vehicle engines and people what other objects create and retain heat?
Answer: Unanswerable

Question: What term means to generate heat and is especially visible in infrared wavelengths of light?
Answer: Unanswerable

Question: What is the term that uses the infrared spectrum that is radiated by hot bodies?
Answer: Unanswerable

Question: What term describes the spectrum of light that is part of the visible spectrum?
Answer: Unanswerable