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
-
Once the python swallows the tracker, biologists can track the dangerous python.—
Ticked Off,
The Orlando Sentinel,
30 Apr. 2026
-
According to the ships’ tracker published on the activist group’s website, 22 vessels were intercepted in international waters west of the southern Greek island of Crete, while a further 36 were still sailing midday on Thursday.—
ABC News,
ABC News,
30 Apr. 2026
Noun
-
The president and king wore tails and white waistcoats.—
Elise Taylor,
Vanity Fair,
29 Apr. 2026
-
The table revealed that an ovoid body—blunt nose, tapering tail—came closer to aerodynamic perfection than anything else a designer could draw.—
Bill Gourgey,
Popular Science,
29 Apr. 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
-
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 2 May. 2026.
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