1N-COUNT 微粒;极小量 A particle of something is a very small piece or amount of it. 微粒;极小量
...a particle of hot metal.
热金属微粒
There is a particle of truth in his statement. [+ of]
他的陈述中有一点点实话。
...food particles.
食物微粒
2N-COUNT 粒子 In physics, a particle is a piece of matter smaller than an atom, for example an electron or a proton. 粒子 [technical]
3N-COUNT (语法中的)小品词 In grammar, a particle is a preposition such as 'into' or an adverb such as 'out' which can combine with a verb to form a phrasal verb. (语法中的)小品词