| Subject | English | French |
| agric. | long term experiment | expérience sur champ à long terme |
| environ. | long-term experiment 1. Experiment lasting for a relatively long period of time. 2. Experiment whose results become effective after a long period of time | expérience sur le long terme |
| environ. | long-term experiment | expérience sur le long terme |
| earth.sc. | long-term weathering experiment | expérience climatique à long terme |