Associations to the word «Tracer»

Wiktionary

TRACER, noun. (chemistry) A chemical used to track the progress or history of a natural process.
TRACER, noun. A round of ammunition for a firearm that contains magnesium or another flammable substance arranged such that it will burn and produce a visible trail when fired in the dark.
TRACER, noun. The act of tracking or investigating something.
TRACER, noun. A person who traces something.

Dictionary definition

TRACER, noun. An investigator who is employed to find missing persons or missing goods.
TRACER, noun. An instrument used to make tracings.
TRACER, noun. (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes.
TRACER, noun. Ammunition whose flight can be observed by a trail of smoke.

Wise words

In words, as fashions, the same rule will hold; Alike fantastic, if too new, or old: Be not the first by whom the new are tried, Nor yet the last to lay the old aside.
Alexander Pope