Dictionary Check: tracer
"tracer" is a valid word!
Scrabble
8
points
Words with Friends
9
points
Definition
noun
an investigator who is employed to find missing persons or missing goods
noun
an instrument used to make tracings
noun
(radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
noun
ammunition whose flight can be observed by a trail of smoke
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