| Subject | English | French |
| tech. | counting rate for a radioactive tracer | taux de comptage |
| chem. | radioactive tracer | élément traceur |
| tech. | radioactive tracer | traceur radioactif |
| chem. | radioactive tracer | radio-indicateur |
| chem. | radioactive tracer | traceur |
| environ. | radioactive tracer A radioactive isotope which, when injected into a biological or physical system, can be traced by radiation detection devices, permitting determination of the distribution or location of the substance to which it is attached | traceur radioactif |
| tech. | radioactive tracer | indicateur radioactif |
| anal.chem. | radioactive tracer method | méthode des radioéléments traceurs |
| anal.chem. | radioactive tracer method | méthode de marquage radioactif |
| environ. | radioactive tracer technique | technique du traceur radioactif |
| environ. | radioactive tracers | traceurs radioactifs |
| chem. | research with radioactive tracers | étude au moyen de traceurs radioactifs |
| med. | tracer radioactive method | méthode de marquage radio-actif |