gravitino

noun
grav·​i·​ti·​no | \ ˌgra-və-ˈtē-nō How to pronounce gravitino (audio) \

Definition of gravitino

: a hypothetical fermion that is associated with the graviton in theories of supergravity

First Known Use of gravitino

1977, in the meaning defined above

History and Etymology for gravitino

graviton + -ino (as in neutrino)

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The first known use of gravitino was in 1977

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Cite this Entry

“Gravitino.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gravitino. Accessed 24 Nov. 2020.

More from Merriam-Webster on gravitino

Britannica.com: Encyclopedia article about gravitino

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