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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 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

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

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