as in tracker
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Recent Examples of tracer
To study crowding in cells, biologists needed a proxy molecule in the same size range — a tracer roughly as large as the large molecules involved in most cellular reactions.
—
Quanta Magazine, 18 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
The dye, a non-toxic tracer often used in environmental studies, transformed the waters of the Grand Canal into a bright green color.
—Julia Jacobo, ABC News, 25 Nov. 2025
In fact, Elsbeth overhears Reynolds paying close attention to a concerned skip tracer (a new-to-me term for a process server) who brings them his worry that Anders is missing in the first place.
—Sophie Brookover, Vulture, 14 Nov. 2025
See All Example Sentences for tracer
Quanta Magazine, 18 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
The dye, a non-toxic tracer often used in environmental studies, transformed the waters of the Grand Canal into a bright green color.
—Julia Jacobo, ABC News, 25 Nov. 2025
In fact, Elsbeth overhears Reynolds paying close attention to a concerned skip tracer (a new-to-me term for a process server) who brings them his worry that Anders is missing in the first place.
—Sophie Brookover, Vulture, 14 Nov. 2025
See All Example Sentences for tracer
Recent Examples of Synonyms for tracer
Noun
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The new device bears a striking resemblance to Whoop’s health tracker, featuring a soft fabric band with a battery and sensor pack underneath.—
Bloomberg,
Mercury News,
7 May 2026
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Some, like fitness tracker Strava, were built around tracking activity but have evolved into social networks where people connect through clubs and group events.—
Hanna Wickes,
Miami Herald,
6 May 2026
Noun
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But the long tail of bets creates a long tail of self-dealing that will be harder for authorities to catch.—
Liz Hoffman,
semafor.com,
7 May 2026
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The carapace of a spiny lobster (the part that is not the tail) must be greater than three inches long to be legal size.—
David Goodhue,
Miami Herald,
7 May 2026
Noun
-
That evening, a detective assigned to a robbery intervention detail tried to stop a black Mercedes-Benz at Northwest 17th Avenue and 71st Street, according to a MDSO video.—
Sofia Saric,
Miami Herald,
28 Apr. 2026
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His gift is an uncanny ability to solve crimes that leave the LAPD baffled, armed only with the savvy and dry humor reminiscent of the gumshoe detectives of the noir genre.—
Melanie Goodfellow,
Deadline,
28 Apr. 2026
Cite this Entry
“Tracer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tracer. Accessed 12 May. 2026.
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