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radiotracer

American  
[rey-dee-oh-trey-ser] / ˈreɪ di oʊˌtreɪ sər /

noun

Chemistry.
  1. a radioactive isotope used as a tracer.


Etymology

Origin of radiotracer

First recorded in 1945–50; radio- + tracer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The radiotracer most commonly used, called FDG, helps measure the uptake of glucose.

From Washington Post • Apr. 27, 2015

The Mayo Clinic in Rochester, Minn., has persuaded Medicare to reimburse for C11-choline, a radiotracer that studies have shown is highly effective at detecting recurrent prostate cancer.

From Washington Post • Apr. 27, 2015

A radiotracer that can help rule out Alzheimer’s disease exists, Gambhir says, but it costs $3,000 to $5,000 per scan.

From Washington Post • Apr. 27, 2015

But not when our lives were tied to where the radiotracer chose to land.

From New York Times • Mar. 1, 2011

As Ruth lay there on the bone scan table, a microscopic radiotracer they had injected into her veins coursed around her circulatory system.

From New York Times • Mar. 1, 2011

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