tracer Synonyms

cluer radiocarbon atomic cocktail watcher trailer tracker surveyor spotter signer sharpie scrutator scriber radiothorium tracer bullet radioisotope tracer atom tagged atom tracer element scanner shamus outliner delimiter highlighter round shot decoder boffin scorer researcher reporter dropper discoverer detective definer dauber dasher courser composer chaser channel bookmark explorer follower hunter pursuer printer pathfinder operative mouser marker locator