weather modification
nounUK /ˈwɛðə ˌmɒdɪfɪˈkeɪʃən/
US /ˈwɛðər ˌmɑːdəfəˈkeɪʃən/
Weather modification is when people try to change the weather on purpose.
Cloud seeding is a type of weather modification used to make rain.
OTHER MEANINGS
2. The act of making small changes to weather data or forecasts.
The station's weather modification of the forecast added a rain warning.
3. Any deliberate human action that changes local weather conditions.
Building a large dam caused weather modification in the valley.
4. Scientific efforts to reduce storm damage by changing clouds.
Weather modification projects aim to weaken hailstorms over farms.