Definition of higgsino in US English:

higgsino

noun

Particle Physics
  • A hypothetical particle which is the supersymmetric fermion counterpart of a Higgs boson, with spin ½ instead of 0.

Origin

1980s; earliest use found in Physics Letters. From the name of Peter Ware Higgs + -ino.

Pronunciation

higgsino

/hɪɡˈziːnəʊ/