Definition of sparticle in US English:

noun

• A hypothetical subatomic particle predicted by supersymmetry, which is the boson equivalent of a known fermion.

  ‘every baryonic particle should have a supersymmetric twin: a sparticle’

  More example sentences

  • ‘The reason physicists haven't yet observed sparticles might be because they are so much heavier than their normal sister particles, so they decay far too quickly.’
  • ‘"These are called sparticles - super particles - which make up, we think, dark matter, which in turn makes up 10 times more matter than ordinary matter."’
  • ‘Should these "sparticles" exist, perhaps they might explain the existence of dark matter that we know pervades the entire Universe, but have little idea what it is.’
  • ‘Top among all of these theories was always supersymmetry, the idea that every known elementary particle has one or more heavier partners, known as sparticles.’