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Showing results for nuclear. Search instead for nucleocap.
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.

In 25 years, Mike Bechtel thinks we will have a new source of clean, abundant energy: nuclear fusion.

From The Wall Street Journal • Apr. 6, 2026

Highly enriched uranium can be used for nuclear weapons; low-enriched uranium can fuel nuclear power plants.

From The Wall Street Journal • Apr. 6, 2026

For years, Western nations have accused Iran of seeking to develop nuclear weapons, an accusation Tehran denies.

From Barron's • Apr. 4, 2026

User-friendly design can save lives by allowing for legibility and shared understanding, making it safer to run nuclear power plants, air traffic control towers, and robotic surgical systems.

From Slate • Apr. 4, 2026

About 200 miles from Otsuchi, the nuclear plant’s operators spent the night of the tsunami working frantically in pitch-black control rooms desperately trying to stop a chain reaction that was spinning out of control.

From "Meltdown" by Deirdre Langeland

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.