| Subject | English | Bulgarian |
| chem. | GC-MS | газова хроматография/масс-спектрометрия |
| chem. | GC-MS | газова хроматография/масс-спектроскопия |
| chem. | GC-MS | газова хроматография-масс-спектрометрия |
| pharma. | M2-inhibitors | амантадини |
| pharma. | M2 ion channel blockers | амантадини |
| forestr. | m3s m3 loose | кубичен метър |
| comp., MS | MS-DOS operating system | операционна система MS-DOS (A Microsoft computer operating system with a command-line interface that is used to control many internal computer functions, such as running programs and organizing and maintaining files) |
| chem. | 5-tert-butyl-2,4,6-trinitro-m-xylene | 5-терт-бутил-2,4,6-тринитро-m-ксилен |