| tracer | ammunition whose flight can be observed by a trail of smoke |
|---|---|
| tracer | (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes |
| tracer | an instrument used to make tracings |
| tracer | an investigator who is employed to find missing persons or missing goods |
| tracer | ammunition whose flight can be observed by a trail of smoke |
| tracer | decoration consisting of an open pattern of interlacing ribs |