WordNet Search - 3.1
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Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
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Noun
S:
(n)
tracer (tracer%1:18:00::)
(an investigator who is employed to find missing persons or missing goods)
S:
(n)
tracer (tracer%1:06:02::)
(an instrument used to make tracings)
S:
(n)
tracer (tracer%1:06:01::)
((radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes)
S:
(n)
tracer (tracer%1:06:00::)
,
tracer bullet (tracer_bullet%1:06:00::)
(ammunition whose flight can be observed by a trail of smoke)