nucleus

名词 n.
中文释义
英 /ˈnjuː.kli.əs/    美 /ˈnuː.kli.əs/

英文释义

名词 n.
  1. The core, central part of something, around which other elements are assembled.
    — Situated in the centre of the largest agricultural basin in northern Formosa, T’ai-pei (population in 1964 was estimated to be 1,117,000) forms the nucleus of a major industrial area. The T’ai-pei industrial complex includes light and heavy industies within the urbanized area and also in several industrial suburbs, including Pan-ch’iao and Nan-chiang.
  2. An initial part or version that will receive additions.
    — This collection will form the nucleus of a new library.
  3. The massive, positively charged central part of an atom, made up of protons and neutrons.
  4. A large membrane-enclosed organelle found in eukaryotic cells which contains genetic material.
  5. A ganglion, cluster of many neuronal bodies where synapsing occurs.
  6. The central part of a syllable, most commonly a vowel.
  7. A small bee-hive used to create a colony from a larger existing one.

词形变化

nuclei plural nucleuses plural

词汇关系

衍生词
active galactic nucleus antinucleus atomic nucleus binucleus Borromean nucleus caudate nucleus cell nucleus dentate nucleus Edinger-Westphal nucleus emboliform nucleus endonucleus gameto-nucleus geniculate nucleus halo nucleus hypernucleus ice nucleus intermediolateral nucleus lateral geniculate nucleus lenticular nucleus lentiform nucleus macronucleus medial geniculate nucleus meganucleus micronucleus Monakow's nucleus myonucleus nucle- nuclear nuclease nucleate, anucleate nucleic acid nuclein nucleo- nucleolar nucleon nucleotide nucleus accumbens nucleus ambiguus nucleus cowry, nucleus cowrie nucleus globosus nucleuslike nucleus pulposus nucleus ruber nuclide paranucleus perinucleus planetary nebula nucleus prenucleus pronucleus red nucleus rejection nucleus retrotrapezoid nucleus sentence nucleus subnucleus syllable nucleus vestibular 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.
0 次浏览 数据来源: Wiktionary