What is the meaning of IRST?

(Military) IRST stands for infrared search and track
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). irst. Retrieved September 25, 2026, from http://smartdefine.org/irst/definitions/1956371
ChicagoMilitary Dictionary (DoD). 2011. "irst" http://smartdefine.org/irst/definitions/1956371 (accessed September 25, 2026).
HarvardMilitary Dictionary (DoD) 2011, irst, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/irst/definitions/1956371>.
MLAMilitary Dictionary (DoD). "irst" 4 April 2011. Web. 25 September 2026. <http://smartdefine.org/irst/definitions/1956371>