| Subject | German | English |
| tech. | absorbierendes Isotop | absorbing isotope |
| phys.sc. | Alphateilchen emittierendes Isotop | alpha-emitting isotope |
| phys.sc. | Alphateilchen emittierendes Isotop | alpha radiator |
| phys.sc. | Alphateilchen emittierendes Isotop | alpha-particle-emitting isotope |
| phys.sc. | Alphateilchen emittierendes Isotop | alpha-emitting radionuclide |
| phys.sc. | Alphateilchen emittierendes Isotop | alpha emitter |
| gen. | angereichertes Isotop | enriched isotope |
| agric. | Anwendung von Isotopen und Kernstrahlungen in der Landwirtschaft | nuclear agriculture |
| tech., el. | automatisches Isotopen-Massenspektrometer | automatic isotope mass spectrometer |
| gen. | bruetbares Isotop | fertile isotope |
| el., chem. | brütbares Isotop | fertile isotope |
| earth.sc. | Curium Isotop | curium isotope |
| phys. | Datierung mit Hilfe von Isotopen | isotopic dating |
| phys. | Datierung mit Hilfe von Isotopen | isotope dating |
| gen. | durch die Isotope des Urans kontaminierter Stoff | material contaminated by uranium isotopes |
| radiat. | durch radioaktiven Zerfall entstandenes Isotop | isotope resulting from radioactive decay (disintegration) |
| radiat. | durch radioaktiven Zerfall entstandenes Isotop | isotope arising from radioactive decay (disintegration) |
| radiat. | durch radioaktiven Zerfall entstandenes Isotop | radiogenic isotope |
| med. | durch stabile Isotopen markiertes Arzneimittel | stable isotope-labelled drug |
| nucl.phys. | Erhöhung der Konzentration des erfassten Isotops | increasing the concentration of the controlled isotope |
| nucl.phys., OHS | filterbares Isotop | filterable isotope |
| nucl.phys., OHS | filterbares Isotop | filtrable isotope |
| nucl.phys., OHS | filtrierbares Isotop | filterable isotope |
| nucl.phys., OHS | filtrierbares Isotop | filtrable isotope |
| meas.inst. | Flächendichtemessgerät mit radioaktiven Isotopen | isotopic thickness gauge |
| meas.inst. | Flächendichtemessgerät mit radioaktiven Isotopen | isotopic thickness gage |
| meas.inst. | Flächendichtemeßgerät mit radioaktiven Isotopen | isotope thickness gauge |
| gen. | fruchtbares Isotop | fertile isotope |
| meas.inst. | Gerät zur Bestimmung der Dichte mittels Isotopen | isotopic density gauge |
| meas.inst. | Gerät zur Bestimmung der Dichte mittels Isotopen | isotopic density gage |
| earth.sc. | geschlossenes Isotop | sealed isotope |
| tech. | getrennte Isotope | separated isotopes |
| biol. | Gramm spaltbare Isotope | gram of fissile isotopes |
| biol. | Gramm spaltbare Isotope | gi F/S |
| radiat. | Halbwertzeit des Isotops | isotopic half-life |
| phys. | Häufigkeit der Isotope | abundance of isotopes |
| chem. | instabiles Isotop | unstable isotope (Radionuclid) |
| chem. | instabiles Isotop | radioactive isotope (Radionuclid) |
| chem. | instabiles Isotop | radioisotope (Radionuclid) |
| earth.sc. | Isotop des Thoriums | isotope of thorium |
| phys. | Isotop-markierte Verbindung | isotopically labelled compound |
| phys. | Isotop-markierte Verbindung | isotopically labeled compound |
| tech. | Isotop mit Neutronendefizit | neutron-deficient isotope |
| radiat. | Isotop radioaktiven Ursprungs | isotope resulting from radioactive decay (disintegration) |
| radiat. | Isotop radioaktiven Ursprungs | isotope arising from radioactive decay (disintegration) |
| radiat. | Isotop radioaktiven Ursprungs | radiogenic isotope |
| tech. | Isotopen-Aktivierungsquerschnitt | isotopic activation cross section |
| chem. | Isotopen-Fraktionierung | isotope fractionation |
| gen. | Isotopen für medizinische Zwecke | isotopes for medical purposes |
| nat.sc. | Isotopen-Generatorsäule | isotope generator column |
| life.sc. | Isotopen-Geothermometer | isotope geothermometer |
| tech. | Isotopen-Haeufigkeitsverhaeltnis | isotopic ratio |
| gen. | Isotopen-Korrelation | isotopic correlation |
| gen. | Isotopen-Kraftgenerator | isotopic power generator |
| f.trade. | Isotopen-Masse in Gramm | isotope weight in grammes |
| tech. | Isotopen-Massen-Spektrometrie | isotope ratio mass spectrometry |
| gen. | Isotopen-Stromgenerator | isotopic power generator |
| earth.sc., chem. | Isotopen-Trennprozess | isotopic separation process |
| anal.chem. | Isotopen-Verdünnungsanalyse | isotope dilution (analysis) |
| anal.chem. | isotoper Indikator | isotopic tracer |
| hi.energ. | isotoper Raum | isospace |
| hi.energ. | isotoper Raum | isotopic spin space |
| hi.energ. | isotoper Raum | isobaric space |
| hi.energ. | isotoper Raum | isospin space |
| hi.energ. | isotoper Spin | i-spin |
| phys.sc. | isotoper Spin | isospin |
| phys.sc. | isotoper Spin | isotopic spin |
| phys.sc. | isotoper Spin | isobaric spin |
| hi.energ. | isotoper Spinraum | isospin space |
| hi.energ. | isotoper Spinraum | isospace |
| hi.energ. | isotoper Spinraum | isotopic spin space |
| gen. | isotoper Spinraum | isotopic space |
| gen. | isotoper Spinraum | isobaric space |
| tech. | isotoper Tracer | isotopic tracer |
| tech. | isotoper Traeger | isotopic carrier |
| anal.chem. | isotoper Träger | isotopic carrier |
| tech. | kuenstliches Isotop | man-made isotope |
| anal.chem. | kurzlebiges Isotop | short-lived radioisotope |
| radiat. | kurzlebiges Isotop | short-lived isotope |
| health., nat.sc., chem. | kurzlebiges radioaktives Isotop | short-lived radioactive isotope |
| med.appl. | künstliches radioaktives Isotop | artificial radioisotope |
| anal.chem. | langlebiges Isotop | long-lived radioisotope |
| tech. | langlebiges Isotop | long-lived isotope |
| nucl.phys. | Lasertrennung von Isotopen | laser isotope separation |
| tech. | Lithium-6 6Li-Isotop | lithium-6 isotope |
| chem. | Masse eines Isotops | mono-isotopic mass |
| nat.res. | Massenspektrometrie abgeschwächter Isotope | isotope dilution mass spectrometry |
| tech. | Messung mit isotopem Indikator | isotope-tracer measurement |
| nucl.phys. | mit den Isotopen 235 oder 233 angereichertes Uran | uranium enriched in the isotopes 235 or 233 |
| tech. | natuerlich vorkommendes Isotop | natural-occuring isotope |
| nucl.phys. | natürlich vorkommende Mischung von Isotopen | mixtures of isotopes occurring in nature |
| med. | nichtradioaktives Isotop | not radioactive isotope |
| med. | nichtradioaktives Isotop | stable isotope |
| earth.sc. | offenes Isotop | open isotope |
| chem. | radioaktives Isotop | unstable isotope |
| med.appl. | radioaktives Isotop | radioactive tracer |
| biol. | radioaktives Isotop | radio-isotope |
| biol. | radioaktives Isotop | radioactive isotope |
| med.appl. | radioaktives Isotop | radiotracer |
| chem. | radioaktives Isotop | radioisotope |
| nucl.phys. | radioaktives Isotop des Wasserstoffes | radioactive isotope of hydrogen |
| nucl.phys., radiat. | radiogenes Isotop | isotope resulting from radioactive decay (disintegration) |
| nucl.phys., radiat. | radiogenes Isotop | isotope arising from radioactive decay (disintegration) |
| radiat. | radiogenes Isotop | radiogenic isotope |
| gen. | Reaktor zum Gewinnen von Isotopen | isotope producing reactor |
| gen. | spaltbares Isotop | fissile isotope |
| tech. | spezifische Aktivitaet des Isotopes | isotope specific activity |
| radiat. | spezifische Aktivität des Isotops | isotope specific activity (per unit mass) |
| earth.sc. | stabile Isotopen-Geologie | stable isotope geology |
| phys. | stabiles Isotop | stable isotope |
| med. | stabiles Isotop | not radioactive isotope |
| earth.sc. | synthetisches Isotop | synthetic isotope |
| chem. | Trennung der kurzlebigen von den langlebigen Isotopen | chemical separation according to half-life |