gravitino

noun

grav·​i·​ti·​no ˌgra-və-ˈtē-nō How to pronounce gravitino (audio)
: a hypothetical fermion that is associated with the graviton in theories of supergravity

Word History

Etymology

graviton + -ino (as in neutrino)

First Known Use

1977, in the meaning defined above

Time Traveler
The first known use of gravitino was in 1977

Dictionary Entries Near gravitino

gravitational wave

gravitino

gravitometer

See More Nearby Entries 

Cite this Entry

“Gravitino.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gravitino. Accessed 1 Apr. 2023.

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More from Merriam-Webster on gravitino

Britannica.com: Encyclopedia article about gravitino

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