| Subject | English | Italian |
| transp., mech.eng. | two stroke engine | motore a due tempi |
| mech.eng. | two-stroke cycle engine | motore a due tempi |
| mech.eng. | two-stroke engine | motore a due tempi |
| environ. | two-stroke engine An internal combustion engine whose cycle is completed in two strokes of the piston | motore a due tempi |