nucleus definition, meaning - what is nucleus in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “nucleus”

See all translations

nucleus

noun [C] uk   /ˈnjuː.kli.əs/  us   /ˈnuː-/ (plural nuclei or nucleuses)
specialized physics the central part of an atom, usually made up of protons and neutrons specialized biology the part of a cell that controls its growth: DNA is stored in the nucleus of a cell.the nucleus of sth the group of people or things that are the most important part of something: These three players will form the nucleus of a revised and stronger team.
(Definition of nucleus from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of nucleus?
Add Cambridge dictionaries to your browser to your website

Definitions of “nucleus” in other dictionaries

Word of the Day

force somebody's hand

to make someone do something they do not want to do, or act sooner than they had intended

Word of the Day

They sometimes go here and they never go there: using adverbs of frequency

by Liz Walter,
April 29, 2015
Sometimes, always, often, never: these are some of the most common words in English.  Unfortunately, they are also some of the words that cause the most problems for students. Many of my students put them in the wrong place, often because that’s where they go in their own languages. They say things

Read More 

Evel abbreviation

May 04, 2015
English votes for English laws; the idea that only English (as opposed to Scottish, Welsh or Irish) MPs should be allowed to vote for laws that affect only England Yet these are the two principal constitutional proposals that have come from the Conservative party in its kneejerk response to Ukip’s English nationalism and

Read More