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heat-seeking

British  

adjective

  1. (of a detecting device) able to detect sources of infrared radiation

    a heat-seeking camera

  2. (of a missile) able to detect and follow a source of heat, as from an aircraft engine

    a heat-seeking missile

"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

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South Korean authorities have deployed heat-seeking cameras and drones in a widening search for a runaway wolf that has been on the loose for three days after escaping from a zoo.

From BBC • Apr. 10, 2026

Defense Department has placed significantly fewer orders for Alloy Surfaces’ pyrophoric airborne decoys, which the company manufactures in Philadelphia and are used as protection against heat-seeking missiles.

From The Wall Street Journal • Nov. 10, 2025

“He’s a heat-seeking missile,” fellow Bruins linebacker Kain Medrano said, “just going in there and causing havoc in any way he can.”

From Los Angeles Times • Oct. 31, 2024

Three such titles this year are a heat-seeking troika that involve American notables who, after a period of relative domestic quiet, have showily returned to the international stage.

From New York Times • May 24, 2024

What about frozen planes, which could be safe from heat-seeking missiles?

From "Extremely Loud and Incredibly Close" by Jonathan Safran Foer

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