microgravity

noun

Etymology: Etymology tree Proto-Indo-European *mey-der.? Ancient Greek μικρός (mikrós)der. English micro- Proto-Indo-European *gʷreh₂- Proto-Indo-European *-us Proto-Indo-European *gʷréh₂us Proto-Italic *gʷraus Latin gravis Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Proto-Italic *-tāts Latin -tās Latin gravitāslbor. French gravitébor. ▲ Latin gravitāslbor. English gravity English microgravity From micro- + gravity.

1. A state of very low acceleration between two free floating objects, as found in sustained freefall, in orbit, or in interstellar space.

   “In microgravity their arteries are thickening and stiffening and the muscle of the heart weakening and shrinking.”