particle

noun

/ˈpɑːtɪkl/

/ˈpɑːrtɪkl/

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a very small piece of something颗粒；微粒
- particles of dust/gold灰尘；金屑
- dust/gold particles灰尘/黄金颗粒
- There was not a particle of evidence (= no evidence at all) to support the case.没有丝毫证据支持这个论点。
see also alpha particle, beta particle, elementary particle, subatomic particleTopics Physics and chemistryc1
(grammar语法) an adverb or a preposition that can combine with a verb to make a phrasal verb小品词（与动词构成短语动词的副词或介词）
- In ‘She tore up the letter’, the word ‘up’ is a particle.在 She tore up the letter 句中，up 是小品词。
see also adverbial particleTopics Languageb2

Word Originlate Middle English: from Latin particula ‘little part’, diminutive of pars, part-.