noun
low gravity; subgravity
Refers to gravitational conditions weaker than Earth's surface gravity, such as on the Moon or in orbit.
月面は低重力なので、ジャンプすると高く飛べる。
Because the lunar surface has low gravity, you can jump high.
宇宙ステーションでは低重力環境での実験が行われている。
Experiments in a low-gravity environment are conducted on the space station.
重力 is the general term for 'gravity'; 低重力 specifies a reduced level.
Compound of 低 (てい, 'low') and 重力 (じゅうりょく, 'gravity').