radiotracer /ra·dio·tra·cer/ (-tra´ser) radioactive tracer.
tracer [trās´er]
ra·di·o·trac·er (r  d - -tr s r)n. A radioactive isotope used as tracer. |
tracer [trās´er]
1. a means or agent by which certain substances or structures can be identified or followed, as a radioactive tracer.
2. a mechanical device by which the outline of an object or the direction and extent of movement of a part may be graphically recorded; see also tracing.
3. a dissecting instrument for isolating vessels and nerves.
radioactive tracer a radioactive isotope replacing a stable chemical element in a compound (said to be radiolabeled) and so able to be followed or tracked through one or more reactions or systems by means of a radiation detector; used especially for such a compound that is introduced into the body for study of the compound's metabolism, distribution, and passage through the body.
radiotracer
a radioactive tracer.
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