「tracer」の発音の仕方

「tracer」の独自の発音を追加します

「tracer」の意味と定義

Noun

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

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Noun

an instrument used to make tracings

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Noun

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

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Noun

ammunition whose flight can be observed by a trail of smoke

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