nucleus

B1 CET-4 大学 FREQ #16689 ★☆☆☆☆

n. 核心, 核子, 原子核, 起点 [计] 核心程序

发音

UK /ˈnjuː.kli.əs/
US /ˈnuː.kli.əs/

词形变化

nuclei 复数 nuclei nucleuses nucleuses 复数

教材释义与例句

名词

核，核心；原子核

释义与例句

n. B1
  1. 1.

    The core, central part of something, around which other elements are assembled.

    核心

    核

  2. 2.

    An initial part or version that will receive additions.

    This collection will form the nucleus of a new library.

  3. 3.

    The massive, positively charged central part of an atom, made up of protons and neutrons.

    原子核

    化学 物理
  4. 4.

    A large membrane-enclosed organelle found in eukaryotic cells which contains genetic material.

    细胞核

    生物 医学
  5. 5.

    A ganglion, cluster of many neuronal bodies where synapsing occurs.

    医学
  6. 6.

    The central part of a syllable, most commonly a vowel.

    语言学
  7. 7.

    A small bee-hive used to create a colony from a larger existing one.

    植物学 商务

词汇关系

名词

同义词 3

core cell nucleus karyon

上位词 6

set center centre structure midpoint organelle

下位词 3

cadre dentate nucleus pronucleus

部分词 9

chromosome achromatin chromatin karyoplasm linin nucleole nucleolus nucleon nucleoplasm

整体词 3

cell comet atom

相关短语

nucleus accumbens 伏核 nucleus pulposus [胚] 髓核 nucleus globosus nucleus ambiguus [医] 疑核 nucleus ruber 红核 atomic nucleus [计] 原子核 [化] 原子核 lateral geniculate nucleus medial geniculate nucleus red nucleus ice nucleus halo nucleus active galactic nucleus 活动星系核 intermediolateral nucleus Edinger-Westphal nucleus [医] 埃-韦二氏核 emboliform nucleus

词源

Etymology tree Proto-Italic *knuks Latin nux Latin nucleuslbor. English nucleus Learned borrowing from Latin nucleus (“kernel, core”). The earliest uses refer to the head of a comet and the kernel of a seed, both recorded in Lexicon Technicum in 1704. The sense in atomic physics was coined by British scientist Michael Faraday in 1844 in a theoretical meaning.

来源：wiktionary