elementary particle
noun/ˌelɪmentri ˈpɑːtɪkl/
/ˌelɪmentri ˈpɑːrtɪkl/
(also fundamental particle)
(physics)- a very small piece of matter (= a substance), such as a quark, that does not contain within it any even smaller pieces of matter compare subatomic particleTopics Physics and chemistryc2
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elementary particle