tracer

Primary Meanings of tracer

1.
n
an investigator who is employed to find missing persons or missing goods
2.
n
an instrument used to make tracings
3.
n
ammunition whose flight can be observed by a trail of smoke
4.
n
(radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
Full Definitions of tracer
1

n an investigator who is employed to find missing persons or missing goods

Type of:
detective, investigator, police detective, tec
a police officer who investigates crimes
2

n an instrument used to make tracings

Type of:
instrument
a device that requires skill for proper use
3

n ammunition whose flight can be observed by a trail of smoke

Synonyms:
tracer bullet
Type of:
ammo, ammunition
projectiles to be fired from a gun
4

n (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes

Type of:
radioisotope
a radioactive isotope of an element; produced either naturally or artificially

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