Noun: tracer trey-su(r)
- An investigator who is employed to find missing persons or missing goods
"The insurance company hired a tracer to locate the stolen artwork"
- An instrument used to make tracings
"The architect used a tracer to copy the intricate details of the building plan"
- (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
"The doctor injected a tracer to track the blood flow through the patient's heart"
- Ammunition whose flight can be observed by a trail of smoke
"The soldiers used tracer bullets to guide their aim in the darkness";
- tracer bullet
Derived forms: tracers
Type of: ammo [informal], ammunition, detective, instrument, investigator, police detective, radioisotope, radionuclide, tec
Encyclopedia: Tracer