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Nuklear vs. Nuclear — Which is Correct Spelling?

Edited by Tayyaba Rehman — By Fiza Rafique — Updated on March 29, 2024
"Nuklear" is an incorrect spelling. The right spelling is "nuclear," relating to the nucleus of an atom or a central part.
Nuklear vs. Nuclear — Which is Correct Spelling?

Which is correct: Nuklear or Nuclear

How to spell Nuclear?


Incorrect Spelling


Correct Spelling

Key Differences

Remember "nuCLEar" emphasizing the "CLE."
Recall "nucleus," the center of an atom, and add "ar."
Associate it with scientific terms, such as "nuclear physics."
Think of "clear" when pronouncing "nuclear."
Envision atomic energy as "nuCLEAR energy."

How Do You Spell Nuclear Correctly?

Incorrect: Many countries are reevaluating their nuklear policies.
Correct: Many countries are reevaluating their nuclear policies.
Incorrect: The nuklear reactor has been shut down for maintenance.
Correct: The nuclear reactor has been shut down for maintenance.
Incorrect: He specializes in nuklear physics.
Correct: He specializes in nuclear physics.
Incorrect: Nuklear weapons pose a significant threat to global security.
Correct: Nuclear weapons pose a significant threat to global security.
Incorrect: The debate over nuklear energy is ongoing.
Correct: The debate over nuclear energy is ongoing.

Nuclear Definitions

Involving atomic energy or the industry associated with it.
The country invested heavily in nuclear power plants.
Pertaining to the nucleus of an atom.
Nuclear reactions provide significant energy.
(Biology) Of, relating to, or forming a nucleus of a cell
A nuclear membrane.
Of or relating to atomic nuclei
A nuclear chain reaction.
Using or derived from the energy of atomic nuclei
Nuclear power.
Of, using, or possessing atomic or hydrogen bombs
Nuclear war.
Nuclear nations.
Drastic or extreme; radical
"The Senate majority leader ... had vowed to invoke what some have called the nuclear option to do away with judicial filibusters" (Carl Hulse).
Pertaining to the nucleus of an atom. Category:en:Nuclear physics
Involving energy released by nuclear reactions (fission, fusion, radioactive decay).
A nuclear reactor
Nuclear technology
Relating to a weapon that derives its force from rapid release of energy through nuclear reactions.
A nuclear explosion
A nuclear power
Involving an extreme course of action.
Nuclear option, nuclear solution
(biology) Pertaining to the nucleus of a cell.
(archaic) Pertaining to a centre around which something is developed or organised; central, pivotal.
Of, pertaining to, or using nuclear weapons; a nuclear exchange, i.e. a reciprocal bombardment by nuclear weapons..
Of, pertaining to, or powered by atomic energy; same as nuclear-powered; as, a nuclear submarine; a nuclear power plant.
Of or pertaining to nations possessing nuclear weapons; as, the nuclear club.
(weapons) deriving destructive energy from the release of atomic energy;
Nuclear war
Nuclear weapons
Atomic bombs
Of or relating to or constituting the nucleus of an atom;
Nuclear physics
Nuclear fission
Nuclear forces
Of or relating to or constituting the nucleus of a cell;
Nuclear membrane
Nuclear division
Constituting or like a nucleus;
Annexation of the suburban fringe by the nuclear metropolis
The nuclear core of the congregation
Relating to weapons that use nuclear energy.
There was a treaty on nuclear disarmament.
Concerning the core or central part of something.
The nuclear family consists of parents and children.
Denoting the number of complete sets of chromosomes in a cell.
Human cells are diploid, meaning they have two nuclear sets of chromosomes.

Nuclear Meaning in a Sentence

The treaty aims to prevent the spread of nuclear weapons.
Nuclear energy is a controversial topic in environmental discussions.
Nuclear power plants generate electricity without emitting carbon dioxide.
The impact of nuclear radiation on human health is a serious concern.
Nuclear tests were conducted in remote areas to minimize risk to populations.
The scientist won a Nobel Prize for her contributions to nuclear physics.
Nuclear fusion has the potential to provide a nearly limitless source of energy.
Nuclear submarines can stay submerged for months at a time.
Nuclear fusion differs from nuclear fission in how energy is produced.
The nuclear family consists of parents and their children.
After the nuclear accident, the area was evacuated.
Nuclear reactors use uranium as fuel to generate heat.
Nuclear medicine uses radioactive substances in the diagnosis and treatment of diseases.
The Cold War era was marked by the nuclear arms race.
The Chernobyl disaster raised questions about nuclear safety protocols.
The international community is working to reduce nuclear arsenals.

Nuclear Idioms & Phrases

Nuclear family

A family unit consisting of two parents and their children (immediate family), as opposed to extended family.
The concept of the nuclear family has evolved over time.

Nuclear fusion

A nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
Nuclear fusion is the process that powers the sun.

Nuclear winter

A theoretical severe and prolonged global climatic cooling effect hypothesized to occur after widespread firestorms following a nuclear war.
Scientists have studied the potential impact of a nuclear winter on Earth's climate.

Nuclear deterrence

A strategy intended to deter an adversary from taking an action not yet started by threatening nuclear retaliation.
Nuclear deterrence has been a cornerstone of military strategy since the Cold War.

Nuclear fission

A nuclear reaction in which the nucleus of an atom splits into smaller parts, releasing large amounts of energy.
Nuclear power plants generate electricity through the process of nuclear fission.

Common Curiosities

Which vowel is used before nuclear?

The vowel "a" is commonly used before "nuclear," as in "a nuclear reaction."

What is the root word of nuclear?

The root word is "nucleus."

What is the pronunciation of nuclear?

Nuclear is pronounced as /nuːˈkliː.ər/.

What is the plural form of nuclear?

Nuclear, as an adjective, doesn't have plural forms.

What is the singular form of nuclear?

Nuclear is an adjective and doesn't have a singular or plural form.

Is nuclear an adverb?

No, "nuclear" is not an adverb.

Which conjunction is used with nuclear?

Standard conjunctions like "and," "or," and "but" can be used with "nuclear," depending on the sentence.

Why is it called nuclear?

It's called "nuclear" because it relates to the "nucleus," the central part of an atom.

What is the verb form of nuclear?

There isn't a verb form of "nuclear." It's primarily an adjective.

Which preposition is used with nuclear?

Various prepositions like "of," "in," and "for" can be used with "nuclear" depending on the context.

Is nuclear an abstract noun?

No, "nuclear" is an adjective and not an abstract noun.

Is nuclear a countable noun?

Nuclear is an adjective, not a noun.

Is nuclear a collective noun?

No, "nuclear" is not a collective noun.

How do we divide nuclear into syllables?

It can be divided as nu-clear.

Which article is used with nuclear?

Both "a" and "the" can be used with "nuclear," depending on context.

Is nuclear a negative or positive word?

Nuclear is neutral; its connotation depends on the context.

Is the word nuclear imperative?

No, "nuclear" is not imperative.

How many syllables are in nuclear?

Nuclear has 2 syllables.

What is a stressed syllable in nuclear?

The second syllable, "cle," is stressed.

What part of speech is nuclear?

Nuclear is an adjective.

What is the first form of nuclear?

Nuclear does not have verb forms as it's an adjective.

Is nuclear a noun or adjective?

Nuclear is an adjective.

What is another term for nuclear?

Another term for nuclear can be "atomic."

Is nuclear a vowel or consonant?

The term "nuclear" starts with a consonant.

Is the nuclear term a metaphor?

Not inherently, but "nuclear" can be used metaphorically, like "a nuclear reaction" to describe an explosive situation.

Which determiner is used with nuclear?

Determiners like "a," "the," or "this" can be used with "nuclear" depending on context.

What is the second form of nuclear?

Nuclear doesn't have verb forms as it's an adjective.

What is the third form of nuclear?

Nuclear doesn't have verb forms as it's an adjective.

What is the opposite of nuclear?

There isn't a direct opposite, but "non-nuclear" can denote the absence of nuclear properties or capabilities.

How is nuclear used in a sentence?

Nuclear is used in a sentence like: "The nation is focusing on nuclear energy as a clean power source."

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Author Spotlight

Written by
Fiza Rafique
Fiza Rafique is a skilled content writer at, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.

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