the very low apparent gravity experienced in a spacecraft in earth orbit
WordReference Random House Unabridged Dictionary of American English © 2026
mi•cro•grav•i•ty
(mī′krō grav′i tē),USA pronunciation n.
- Aerospacea condition, esp. in space orbit, where the force of gravity is so weak that weightlessness results.
- micro- + gravity 1980–85
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