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Definitions

nuclear

[noo-klee-er, nyoo-, -kyuh-ler] / ˈnu kli ər, ˈnyu-, -kyə lər /
ADJECTIVE
central
Synonyms
STRONGEST
basic essential fundamental important key paramount pivotal significant
STRONG
cardinal center chief dominant interior intermediate leading master mean median middle midway primary prime radical ruling salient umbilical
WEAK
axial centric centroidal equidistant focal foremost inmost inner mid middlemost midmost omphalic outstanding overriding predominant
Antonyms
STRONGEST
additional auxiliary extra inessential insignificant minor nonessential secondary trivial unimportant unsubstantial
STRONG
exterior extreme inferior outer outside subordinate
WEAK
peripheral
ADJECTIVE
inner
Synonyms
WEAK
close constitutional essential familiar focal inherent innermore inside interior internal intestinal intimate intrinsic inward
Antonyms
WEAK
exterior external outer outside physical
ADJECTIVE
organic
Synonyms
STRONGEST
biological
STRONG
anatomical constitutional essential fundamental integral living necessary original primary prime primitive principal
WEAK
amoebic animate basal biotic cellular elemental inherent innate live plasmic structural vital
Antonyms
STRONG
accessory auxiliary extra inessential minor secondary trivial unimportant unnecessary
WEAK
inorganic man-made unnatural

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Army researchers once drilled into the ice while attempting to conceal nuclear missiles.

From Science Daily • Apr. 18, 2026

The prime minister visited the Faslane nuclear base for two-and-a-half hours on Saturday after arriving from Paris following the UK-France summit on the Iran crisis.

From BBC • Apr. 18, 2026

"To meet the energy demands of AI, tech companies are building gigawatt data centers powered by dedicated nuclear power plants," Hersam said.

From Science Daily • Apr. 18, 2026

Germany is saving its coal and nuclear plants.

From The Wall Street Journal • Apr. 17, 2026

In Japan, a law set the maximum exposure allowed for a nuclear power plant worker under normal conditions at 50 mSv a year, or 100 mSv over five years.

From "Meltdown" by Deirdre Langeland

Vocabulary lists containing nuclear

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