sub-atomic particleとは 意味・読み方・使い方

名詞

subatomic particle (plural subatomic particles)

1. (particle physics) Any of many units of matter smaller than an atom.
   • 2023 October 9, Dennis Overbye, “The Science Nobel Winners Were Short and Fast”, in The New York Times‎, archived from the original on 12 October 2023:

     We humans are so stuck in the middle of the cosmic scales — in average height, one-hundredth of one-septillionth (10^-24) the size of the observable universe, and with typical life spans of a couple octillion attoseconds. And an attosecond is an eternity compared with the lifetime of the elusive Higgs boson, a subatomic particle that exists for one-thousandth of an attosecond before decaying.