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

noun Chemistry.

a radioactive isotope used as a tracer.

Origin of radiotracer

First recorded in 1945–50; radio- + tracer Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for radiotracer


[ rādē-ō-trā′sər ]


A radioactive isotope used as tracer.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.