tracer

noun

Definition of tracernext
as in tracker

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of tracer Aware has been using tracer particles and its blockchain technology for several years now, applying it to recycled cotton, denim and other materials. — Jennifer Bringle, Sourcing Journal, 30 Mar. 2026 In the tense Lebanese capital, Beirut, Israeli surveillance drones buzz overhead while red tracer bullets light up the night skies, fired to warn residents of possible attacks. — Matthew Chance, CNN Money, 3 Mar. 2026 The talc was Katharine’s visual tracer. — Natalia Sánchez Loayza, Scientific American, 26 Feb. 2026 The PET scan uses a radioactive drug called a tracer to show both typical and atypical metabolic activity, according to the Mayo Clinic. — Stephanie Giang-Paunon, FOXNews.com, 18 Feb. 2026 See All Example Sentences for tracer
Recent Examples of Synonyms for tracer
  1. tracker
  2. tail
  3. detective
Noun
  • Spacecraft find their bearings The experiment used Starling’s star-tracker cameras, which normally help determine a spacecraft’s orientation by observing bright objects in space.
    — Neetika Walter, Interesting Engineering, 17 Aug. 2026
  • Pixel Tag is a small tracker for things such as keys, wallets or luggage.
    — Kurt Knutsson, FOXNews.com, 15 Aug. 2026
Definition of tracker
Noun
  • Smith left little trace on the scorecard as England moved to 409 all out, looking relatively becalmed for a 52-ball stay largely played alongside the tail.
    — Ben Jones, New York Times, 21 Aug. 2026
  • The professional tail-wagger and lap warmer is the head of security at her home.
    — Saman Shafiq, USA Today, 21 Aug. 2026
Definition of tail
Noun
  • Later, Manny is arrested by Guthrie, the lead detective on the bank robbery case.
    — Sabrina Reed, Forbes.com, 22 Aug. 2026
  • Anyone with information in the case is asked to call the CMPD Homicide Unit 704-432-8477 (TIPS) and speak directly to a detective.
    — Mark Price, Charlotte Observer, 22 Aug. 2026
Definition of detective

Browse Nearby Words

traced
tracer
tracers
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Cite this Entry

“Tracer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tracer. Accessed 24 Aug. 2026.

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More from Merriam-Webster on tracer

Nglish: Translation of tracer for Spanish Speakers

Britannica.com: Encyclopedia article about tracer

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