Definition of photino in English:

photino

Line breaks: pho|tino
Pronunciation: /fə(ʊ)ˈtiːnəʊ
 
/

noun (plural photinos)

Physics
The hypothetical supersymmetric counterpart of the photon, with spin − 1/ 2.
More example sentences
  • The photon, a boson, has a fermion partner called the photino.
  • Also, the next vibration of the string includes a photino or particle which may make up most of the dark matter in the Universe.
  • Another popular notion is supersymmetry, which predicts that all particles have shadowy ‘superpartners,’ with names such as selectrons, smuons and photinos.

Origin

1970s: from photon + -ino from neutrino.

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Word of the day punctum
Pronunciation: ˈpʌŋ(k)təm
noun
a small, distinct point