IPA: //fəʊˈtiːnəʊ//
KK: /fōˈtēnō/
A theoretical particle that is considered to be the superpartner of the photon, possessing a half-integer spin.
In supersymmetry theories, the photino is predicted to exist alongside the photon.
Photino is derived from the Greek word "phōs" (meaning light) and the suffix "-ino" (often used in scientific terminology to denote a smaller or lesser form). The term "photino" refers to a hypothetical elementary particle that is a lighter version of a photon, thus relating to the concept of light.
Think of 'light' ('phōs') to remember that 'photino' refers to a smaller or lighter version of a particle associated with light.