heat-seeking

adjective

(of a detecting device) able to detect sources of infrared radiationa heat-seeking camera
(of a missile) able to detect and follow a source of heat, as from an aircraft enginea heat-seeking missile

Derived Formsheat seeker, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for heat-seeking

Contemporary Examples of heat-seeking

He is a heat-seeking missile for the heart of the right-wing base.
Two Texans Take on Debate
September 13, 2011