TRACER
- one that traces (to follow the course of) [n TRACERS]
- person or thing that traces
- person whose business or work is the tracing of missing property, parcels, persons, etc.
- inquiry sent from point to point to trace a missing shipment, parcel, or the like, as in a transportation system
- one who traces (to follow the course of) [n -S]
- any of various devices for tracing drawings, plans, etc.