particle

molecule, atom, particle, speck, grain

名词 particle:

1. (nontechnical usage) a tiny piece of anything
   同义词：atom, molecule, corpuscle, mote, speck
2. a body having finite mass and internal structure but negligible dimensions
   同义词：subatomic particle
3. a function word that can be used in English to form phrasal verbs

1. A particle, such as an electron, a proton, or a neutron, having half-integral spin and obeying statistical rules requiring that not more than one in a set of identical particles may occupy a particular quantum state.
   费密子一种如电子、质子或中子等自旋为半整数的基本粒子，具有一种使得不可能有多于一个的粒子占有任何一个特殊的量子力学态的量子力学对称性
2. There wasn't a particle of truth in what he said.
   他说的没有一点真话。
3. We can see the dust particles floating in the sunlight clearly.
   我们可以很清楚地看到阳光下的灰尘颗粒。

par.ti.cle

n.Abbr. part.（名词）缩写 part.
A very small piece or part; a tiny portion or speck.
微粒：非常小的块或部分；一小份儿或一小点儿
A very small or the smallest possible amount, trace, or degree:
极小量：可能达到的非常小或最小的数量、痕量或程度：
例句：
not a particle of doubt.
一丝怀疑都没有

Physics
【物理学】
A body whose spatial extent and internal motion and structure, if any, are irrelevant in a specific problem.
质点：其空间延伸和内部的运动和结构（如果存在的话）与某个具体问题无关的物体
An elementary particle.
粒子：基本的微粒
A subatomic particle.See table at subatomic particle
次原子：亚原子微粒参见 subatomic particle
Grammar Linguistics
【语法】 【语言学】
An uninflected item that has grammatical function but does not clearly belong to one of the major parts of speech, such asup in look up or to in English infinitives.
不变词：有语法功能但不明确地归于某个主要词类的无变化词，如up 在 look up 中或 to 在英语不定式中
In some systems of grammatical analysis, any short function word, including articles, prepositions, and conjunctions.
小品词：某些语法分析系统中任意一类有功能的短词，包括冠词、介词和连词
Roman Catholic Church
【罗马天主教】
A small piece of a consecrated host.
一小块圣饼
One of the smaller, individual hosts.
一个小圣饼：较小的单个圣饼之一
Archaic A small division or section of something written, such as a clause of a document.
【古语】 一小段文字：写出的东西中的一小部分或一小段，如文件中的一个条款

来源：
Middle English
中古英语
from Latin particula
源自 拉丁语 particula
diminutive of pars part- [part] * see part
pars的小后缀 part- [部分] *参见 part