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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

Other Word Forms

  • heat seeker noun

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

And Moutra is like a heat-seeking missile when he launches toward the ballcarrier.

From Los Angeles Times • Aug. 29, 2025

They have been joined by Israeli and Mexican search teams and are using sophisticated heat-seeking equipment to try to locate anyone still alive.

From BBC • Apr. 9, 2025

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

He had to have been thinking a bomb was about to drop, that Cade Hernandez was about to deploy a heat-seeking missile.

From "100 Sideways Miles" by Andrew Smith