blackbody radiation
n.β Β«The millimeter wave signature is also known as blackbody radiation and is made up of two properties: emissivity and reflectivity.Β» ββBrijot Imaging Systems, Inc. Deliversβwith Passive Millimeter Wave Technology from Lockheed MartinβWorldβs First Commercial Real-Time Concealed Weapons Detection Camera” in Orlando, Fla. Business Wire Mar. 15, 2005. (source: Double-Tongued Dictionary)