Noun
English Wikipedia has an article on:superpartnerWikipedia
superpartner (plural superpartners)
(physics) Any particle related to a more standard particle by supersymmetry.
Each particle in the Standard Model would have a superpartner whose spin differs by 1/2 from the ordinary particle. Source: Internet
Supersymmetry Supersymmetry assumes that every fundamental fermion has a superpartner that is a boson and vice versa. Source: Internet