| Subject | English | German |
| health., chem. | acetyl cysteine | Acetyl cystein |
| med.appl. | cysteine biosensor | Zystein-Biosensor |
| health. | cysteine-containing peptide | Cysteinpeptid |
| nucl.phys., med. | cysteine disulfide | Disulfid des Cysteins (НООС—CHNH2— СН2—S—S—CH2— CHNH2—СООН, a radioprotective substance) |
| nucl.phys., med. | cysteine disulfide | Zystin (НООС—CHNH2— СН2—S—S—CH2— CHNH2—СООН, a radioprotective substance) |
| nucl.phys., med. | cysteine disulfide | Cysteindisulfid (НООС—CHNH2— СН2—S—S—CH2— CHNH2—СООН, a radioprotective substance) |
| nucl.phys., med. | cysteine disulfide | Cystin (НООС—CHNH2— СН2—S—S—CH2— CHNH2—СООН, a radioprotective substance) |
| med. | cysteine endopeptidase | Sulfhydrylproteinase |
| med. | cysteine endopeptidase | Thiolproteinase |
| med. | cysteine endopeptidase | Cysteinendopeptidase |
| gen. | cysteine protease | Cysteinprotease |
| nucl.phys., OHS | cysteine protection | chemischer Strahlenschutz durch Cystein |
| nucl.phys., OHS | cysteine protection | Cysteinschutz |
| med. | cysteine proteinase | Sulfhydrylproteinase |
| med. | cysteine proteinase | Thiolproteinase |
| med. | cysteine proteinase | Cysteinendopeptidase |
| food.ind., chem. | L-Cysteine | L-Cystein |
| health. | N-acetyl cysteine | N-Acetylcystein |
