zero gravity
noun/ˌzɪərəʊ ˈɡrævəti/
/ˌzɪrəʊ ˈɡrævəti/
[uncountable] (abbreviation zero G)
- a state in which there is no gravity, or where gravity has no effect, for example in space
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zero gravity
Definition of zero gravity noun from the Oxford Advanced Learner's Dictionary