Diagnostic technique using a thermograph to record the heat produced by different parts of the body; used to study blood flow and to detect tumors WordNet 3.0 & Open English WordNet

Infrared thermography, thermal video and/or thermal imaging, is a process where a thermal camera captures and creates an image of an object by using infrared radiation emitted from the object in a process, which are examples of infrared imaging science. Wikipedia

Image production using infrared radiation Wikipedia Disambiguation

Imaging in mid- to long-wavelength infrared to reveal temperature Wikidata