Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “nuclear”

See all translations

nuclear

adjective

nuclear adjective (OF ATOMS)

physics    /ˈnu·kli·ər/ [not gradable] of or relating to a process by which the nucleus (= central part) of an atom is divided or joined to another nucleus, resulting in the release of energy    /ˈnu·kli·ər/ [not gradable] relating to weapons, or the use of weapons, in which an atom is divided or joined to another nucleus to release energy in a destructive way: nuclear war nuclear disarmament (= giving up or removing a country’s nuclear weapons)

nuclear adjective (OF CELLS)

biology /ˈnu·kli·ər/ [not gradable] of or relating to the nucleus of a cell
Translations of “nuclear”
in Korean 핵의…
in Arabic نَوَوي…
in Portuguese nuclear…
in Catalan nuclear…
in Japanese 原子力の, 原子(核)の…
in Italian nucleare…
in Chinese (Traditional) 能源, 核能的, 使用核能的…
in Russian ядерный…
in Turkish nükleer, atom çekirdeğinin merkezine ilişkin…
in Chinese (Simplified) 能源, 核能的, 使用核能的…
in Polish jądrowy, nuklearny…
(Definition of nuclear from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of nuclear?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “nuclear”

Definitions of “nuclear” in other dictionaries

Word of the Day

piglet

a baby pig

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More