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tracer |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tracer \Trac"er\, n. 1. A person engaged (esp. in the express or railway service) in tracing, or searching out missing articles, as packages or freight cars. 2. An inquiry sent out (esp. in transportation service) for a missing article, as a letter or an express package. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tracer \Tra"cer\, n. One who or that which traces. From WordNet r 1.6 [wn]: tracer n 1: any radioactive isotope introduced into the body to study metabolism or other biological processes 2: flight can be observed by trail of smoke [syn: {tracer bullet}]
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