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gravitino

[grav-i-tee-noh]
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noun Physics.
  1. the hypothetical fermionic partner of the graviton, predicted by the supergravity extension of Einstein's theory of general relativity.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

gravitino in Science

gravitino

[grăv′ĭ-tēnō]
  1. A hypothetical particle postulated in supergravity theory to correspond to the graviton, just as neutrinos correspond to other fermions. See also neutrino supergravity.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.