[grav-i-tee-noh] /ˌgræv ɪˈti noʊ/
the hypothetical fermionic partner of the graviton, predicted by the supergravity extension of Einstein’s theory of general relativity.
A hypothetical particle postulated in supergravity theory to correspond to the graviton, just as neutrinos correspond to other fermions. See also neutrino, supergravity.
[grav-i-ton] /ˈgræv ɪˌtɒn/ noun, Physics. 1. the theoretical quantum of gravitation, usually assumed to be an elementary particle that is its own antiparticle and that has zero rest mass and charge and a spin of two. /ˈɡrævɪˌtɒn/ noun 1. a postulated quantum of gravitational energy, usually considered to be a particle with zero charge and […]
gravitropism (grā-vĭt’rə-pĭz’əm) See geotropism.
[grav-i-tee] /ˈgræv ɪ ti/ noun, plural gravities. 1. the force of attraction by which terrestrial bodies tend to fall toward the center of the earth. 2. heaviness or weight. 3. gravitation in general. 4. . 5. a unit of acceleration equal to the acceleration of gravity. Symbol: g. 6. serious or critical nature: He seemed […]
noun 1. the technique of using the energy of a gravitational field and the orbital velocity of a planet to change the speed and trajectory of a spacecraft.