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English definition of “tracer”

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tracer

noun [C] uk   /ˈtreɪ.sər/ us    /-sɚ/
a bullet that leaves a line of flame or smoke behind it when it is fired, so that you can see the direction it has taken: Tracer bullets streaked through the sky. The sky was bright with tracer fire.
Translations of “tracer”
in Chinese (Traditional) 曳光彈…
in Chinese (Simplified) 曳光弹…
(Definition of tracer from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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