as in tracker
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Recent Examples of tracer
The researchers used positron emission tomography (PET) scans, along with a radioactive tracer to measure the production of a chemical called acetylcholine in the participants’ brains at the start and end of the study.
—
Korin Miller, SELF, 23 Oct. 2025
The imaging technique relies on the use of a radioactive tracer and a special camera to make pictures of breast tissue.
—Hannah Millington, MSNBC Newsweek, 3 Oct. 2025
Bradley had previously held a temporary position with the county as a contact tracer during the pandemic.
—Lucas Robinson, San Diego Union-Tribune, 18 Sep. 2025
Their tracer arcs converged on the approaching drones.
—Ken Harbaugh, The Atlantic, 15 Sep. 2025
See All Example Sentences for tracer
Korin Miller, SELF, 23 Oct. 2025
The imaging technique relies on the use of a radioactive tracer and a special camera to make pictures of breast tissue.
—Hannah Millington, MSNBC Newsweek, 3 Oct. 2025
Bradley had previously held a temporary position with the county as a contact tracer during the pandemic.
—Lucas Robinson, San Diego Union-Tribune, 18 Sep. 2025
Their tracer arcs converged on the approaching drones.
—Ken Harbaugh, The Atlantic, 15 Sep. 2025
See All Example Sentences for tracer
Recent Examples of Synonyms for tracer
Noun
-
But while New York saw a 17 percent year-over-year in TV and movie shoot count in the third quarter of 2025, production spend also fell 32 percent to $849 million in the quarter, per industry tracker ProdPro.—
Erik Hayden,
HollywoodReporter,
12 Jan. 2026
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Expense tracker apps can be a big help here.—
Andreina Rodriguez,
CNBC,
12 Jan. 2026
Noun
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Once stationary, turn off all lights except the hazard flashers, engage the emergency brake, and release the brake pedal to ensure your tail lights are not illuminated, reducing the risk of other drivers colliding with your stationary vehicle.—
NC Weather Bot,
Charlotte Observer,
7 Jan. 2026
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Hofman's photos of the Ross seal — often distinguished by its broad, dark stripes on its body and neck, as well as its large eyes — show the seal facing the camera directly, with its flippers and tail trailing behind it.—
Rachel Raposas,
PEOPLE,
6 Jan. 2026
Noun
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Nampa detectives eventually learned about Salat’s case in Ada County, where he originally was charged with three counts of lewd conduct with a child under 16, court records show.—
Rose Evans,
Idaho Statesman,
7 Jan. 2026
-
Robert Marshall, lead homicide detective, added.—
Madison E. Goldberg,
PEOPLE,
7 Jan. 2026
Cite this Entry
“Tracer.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tracer. Accessed 13 Jan. 2026.
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