tracer
tra·cer
noun
1.
an investigator who is employed to find missing persons or missing goods
2.
an instrument used to make tracings
3.
(radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
4.
ammunition whose flight can be observed by a trail of smoke
Origin
From trace + -er.
Phrases
- bead tracer
- contact tracer
- dye tracer
- filtrate tracer
- flow tracer
- gas tracer
- intrinsic tracer
- packet tracer
Related words
Word family
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.