| Subject | English | Danish |
| chem. | dimethyl 2, 2, 2-trichloro-1-hydroxyethylphosphonate | trichlorfon |
| chem. | 6-Trichloro-1 | 5-triazin |
| chem. | 6-Trichloro-1 | 6-Trichlor-1 |
| chem. | 1, 1, 1-trichloro-2, 2-bisp-methoxyphenylethane | methoxychlor |
| chem. | 1,1,1-Trichloro-2,2-bis4-chlorophenylethane | dichlordifenyltriklorætan |
| chem. | 2, 2, 2-Trichloro-1, 1-bis4-chlorophenylethanol | dicofol |
| agric., chem. | 3, 5, 6-trichloro-2-methoxyubenzoic acid | tricamba |
