| 释义 |
at·om AHD[ătʹəm] D.J.[ˈætəm]K.K.[ˈætəm]n.（名词） carbon atomClarinda/Academy Artworks- A part or particle considered to be an irreducible constituent of a specified system.原子：某成分或元素，被视为是某一特定结构中不可分的组成部分
- The irreducible, indestructible material unit postulated by ancient atomism.原子：古代唯物论中假定的不可分的、不可破坏的物质单位
- An extremely small part, quantity, or amount.微粒，微量：极小的部分、数量或总量
- Chemistry Physics 【化学】 【物理学】
- A unit of matter, the smallest unit of an element, having all the characteristics of that element and consisting of a dense, central, positively charged nucleus surrounded by a system of electrons. The entire structure has an approximate diameter of 10-8 centimeter and characteristically remains undivided in chemical reactions except for limited removal, transfer, or exchange of certain electrons. 原子：物质的单位、元素的最小单位，有该元素的全部特征，由中部密集的、带有正电的原子核及绕原子核的一系列电子组成。全部结构的直径大约是10-8厘米，除某些电子发生有限的移动、转移或交换以外，在化学反应性能上保持一致
- This unit regarded as a source of nuclear energy. See table at subatomic particle 原子能：认为是原子能来源的单位 参见 subatomic particle
- Middle English attome 中古英语 attome
- from Latin atomus 源自 拉丁语 atomus
- from Greek atomos [indivisible, atom] 源自 希腊语 atomos [ 不可分割的，微粒]
- a- [not] * see a- 1a- [非，不是] * 参见 a-1
- tomos [cutting] from temnein [to cut] * see tem- tomos [切，割] 源自 temnein [切，割] * 参见 tem-
|