A proton is an elementary particle of matter that possesses a positive charge.

质子是带正电荷的物质的基本粒子。

《柯林斯英汉双解大词典》

Odd though it sounds, cosmicinflation is a scientifically plausible consequence of some respected ideas in elementary-particle physics.

宇宙膨胀说虽然听似奇特，但它是基本粒子物理学中一些公认的理论在科学上看来可信的推论。

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He further predicted that every elementary particle with a spin has its counterpart with the same mass but opposite electric charge, or that a particle has an antiparticle.

他进一步预言每一种自旋为的基本粒子都有质量相同但电荷相异的对应粒子，或者说，就是每个这样的粒子都有一个反粒子。

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This is the first elementary particle to be discovered since the tau neutrino in 2001.

FORBES: If I Want To Look Well-Read And In The Flow, What Do I Need To Know About The Higgs Boson Discovery And Announcement?

The Higgs is a fundamentally new type of elementary particle that we have never seen before.

FORBES: If I Want To Look Well-Read And In The Flow, What Do I Need To Know About The Higgs Boson Discovery And Announcement?

The top quark is the heaviest known elementary particle, so there was reason for some excitement.

FORBES: If I Want To Look Well-Read And In The Flow, What Do I Need To Know About The Higgs Boson Discovery And Announcement?