1920 in physics, coined by English physicist Ernest Rutherford (1871-1937) from noun use of Greek proton, neuter of protos "first" (see proto-), on analogy of electron; supposedly because hydrogen was hypothesized as a constituent of all the elements. The word was used earlier in embryology (1893) as a translation of German anlage ("fundamental thing") based on Aristotle's phrase he prote ousia to proton.
例文
1. A proton is an elementary particle of matter.
陽子は物質の基本粒子である。
2.An electron has a negative charge，a proton has a positive charge.
電子帯負電荷、陽子帯正電荷.
3.Miss Malaysia：Well，I can say that male organs in Malaysia are like proton car.
マレーシアさん：マレーシアの男性器象 proton ブランドの乗用車（マレーシア国産車）。
4.Ms Malaysia：Well，I& ; nbsp ;& ; nbsp ; can say that Male Organs in Malaysiaare like Proton car.マレーシアさん：マレーシアの男性器官像 Proton ブランドの乗用車（マレーシア国産車）.
5.At present nobody understands why three quarks which are in the proton are bound together.