Gravitino Definition
 grăvĭ-tēnō 
  gravitinos
  
    noun
  
 A hypothetical particle postulated in supersymmetry theory to be the fermion related to the graviton.
 American Heritage 
Other Word Forms of Gravitino
Noun
Singular:
 gravitinoPlural:
 gravitinosOrigin of Gravitino
- gravit(on) (neutr)ino - From American Heritage Dictionary of the English Language, 5th Edition 
- gravi- +"Ž -ino - From Wiktionary 
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