| 释义 |
nu·cle·us AHD[no͞o′klē-əs, nyo͞o′-] D.J.[ˈnuːkliːəs, ˈnjuː-]K.K.[ˈnukliəs, ˈnju-]n.（名词）【复数】 nu.cle.i[-klē-ī'] 或 nu.cle.us.es - A central or essential part around which other parts are gathered or grouped; a core:核，核心，中心：中心或根本的部分，其他部分被聚集或组合到它的周围；核心：the nucleus of a city.市中心
- Something regarded as a basis for future development and growth; a kernel:起点，开始：被作为进一步发展或生长的基础的事物；核心：a few paintings that formed the nucleus of a great art collection.一个大型艺术收藏的最初的几张画
- Biology A large, membrane-bound, usually spherical protoplasmic structure within a living cell, containing the cell's hereditary material and controlling its metabolism, growth, and reproduction.【生物学】 细胞核：活细胞之内大的、有膜的、常为球形的细胞质结构，含有细胞遗传物质并控制其新陈代谢、生长和繁殖
- Botany 【植物学】
- The central kernel of a nut or seed.籽仁：坚果或种子中心的仁
- The center of a starch granule.淀粉颗粒的中心
- Anatomy A group of specialized nerve cells or a localized mass of gray matter in the brain or spinal cord.【解剖学】 神经核：一组专门的神经细胞或存在于大脑或脊髓中灰物质的局部块
- Physics The positively charged central region of an atom, composed of protons and neutrons and containing almost all of the mass of the atom.【物理学】 原子核：原子的正极中心部分，由质子和中子构成，几乎集中了原子的全部质量
- Chemistry A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions.【化学】 环（晶）核：包围在抗化学反应变化的结构中的一组原子，如苯环
- Astronomy 【天文学】
- The central portion of the head of a comet.彗核：彗星头部的中心部分
- The central or brightest part of a nebula or galaxy.核：星云或银河的中心或最亮部分
- Meteorology A particle on which water vapor molecules accumulate in free air to form a droplet or ice crystal.【气象学】 凝结核：水汽分子在其上积聚并在自由空气中形成小滴或冰晶的粒子
- Latin nuculeus, nucleus [kernel] 拉丁语 nuculeus, nucleus [核，核心]
- from nucula [little nut] 源自 nucula [小核心]
- diminutive of nux nuc- [nut] nux的小后缀 nuc- [核心]
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