Akademik

(physics) a particle that is less complex than an atom; regarded as constituents of all matter

↑antilepton, ↑antiparticle, ↑antiquark, ↑hadron, ↑lepton, ↑quark, ↑strange particle, ↑string, ↑cosmic string, ↑weakly interacting massive particle, ↑WIMP

noun, pl ⋯ -cles [count]

physics : a particle (such as an electron or proton) that is smaller than an atom and does not appear to be made up of a combination of more basic things

ˌelementary ˈparticle [elementary particle] noun (physics)

any of the different types of very small pieces of matter (= a substance) smaller than an atom