noun
weightlessness; zero gravity
Refers to the state where gravitational forces are not felt, as in space. Used in both scientific and everyday contexts.
宇宙ステーションでは無重力状態が続く。
A state of weightlessness continues on the space station.
無重力の中で物が浮かぶ。
Objects float in zero gravity.
微小重力 is a more precise scientific term for 'microgravity', often used in technical contexts, whereas 無重力 is the common term for weightlessness.
Compound of 無 (mu, 'without') and 重力 (jūryoku, 'gravity'). The reading is the standard on'yomi combination.