as in tracker
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Recent Examples of tracer
Using experiments with dry versus wet air, the team conducted special tracer diffusion studies to track the movement of oxygen atoms.
—
Christopher McFadden, Interesting Engineering, 30 Aug. 2025
Three nurses on staff, plus Scanlan, serve as contact tracers.
—Madeline Heim, jsonline.com, 29 Aug. 2025
Vapor tracers typically contain barium, lithium and an aluminum compound — similar to the materials used to make colorful fireworks — according to NASA.
—Denise Chow, NBC news, 25 Aug. 2025
The alkaline substance will be dispersed over four to 12 hours off the back of one of the research vessels, along with the nontoxic fluorescent red water tracer dye called rhodamine.
—ArsTechnica, 11 Aug. 2025
See All Example Sentences for tracer
Christopher McFadden, Interesting Engineering, 30 Aug. 2025
Three nurses on staff, plus Scanlan, serve as contact tracers.
—Madeline Heim, jsonline.com, 29 Aug. 2025
Vapor tracers typically contain barium, lithium and an aluminum compound — similar to the materials used to make colorful fireworks — according to NASA.
—Denise Chow, NBC news, 25 Aug. 2025
The alkaline substance will be dispersed over four to 12 hours off the back of one of the research vessels, along with the nontoxic fluorescent red water tracer dye called rhodamine.
—ArsTechnica, 11 Aug. 2025
See All Example Sentences for tracer
Recent Examples of Synonyms for tracer
Noun
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As of Tuesday, a significant percentage of all deployed US naval assets globally are also now located in US Southern Command, the US military’s command responsible for operations in the region, according to a fleet tracker published by the United States Naval Institute’s news portal.—
Natasha Bertrand,
CNN Money,
19 Oct. 2025
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An electronic tracker in the vehicle allowed the fire department to track the engine on its 60-mile journey north, and officials notified the sheriff’s office of its location.—
Paul Sisson,
San Diego Union-Tribune,
19 Oct. 2025
Noun
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In previous Fortune coverage of inflation’s long tail, consumers’ coping tactics have included trading down brands, shrinking baskets, delaying car repairs, and leaning on credit cards.—
Ashley Lutz,
Fortune,
13 Oct. 2025
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With Arch Bug on their tails, and not knowing whether their son has hired their time-traveling gene, Henry grabs Julia at the last second and presses all of their hands to the stones at the same time.—
Max Gao,
HollywoodReporter,
13 Oct. 2025
Noun
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Wilson County Sheriff’s Office detectives also found seven shell casings.—
Andy Humbles,
Nashville Tennessean,
14 Oct. 2025
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And while the chemistry in the show — which followed a former model (Shepherd) and a detective (Bruce) who manage a private detective agency — was undeniable, a feud was seemingly brewing behind the scenes.—
Abby Stern,
PEOPLE,
14 Oct. 2025
Cite this Entry
“Tracer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tracer. Accessed 20 Oct. 2025.
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