(physics) The concept applying to all matter and radiation, but most evident in light and particles such as the electron, that properties of waves and of particles are exhibited simultaneously

(physics) A subatomic particle with an unusually long lifetime and a large mass; a bound state of a charm quark and an anti-charm quark.

plural of solar energetic particle

(astronomy) A high-energy particle coming from the Sun.

plural of J/psi particle

(astronomy, physics) A hypothetical class of particle, proposed to explain the dark matter problem.

plural of weakly interacting massive particle

plural of strongly interacting massive particle

plural of gravitationally interacting massive particle

(particle physics) a candidate type of dark matter composed of particles that only interact through the strong nuclear force, one of the fundamental forces of nature, and gravity.