Nuclear

Definition

Nuclear is an adjective. It refers to anything relating to the nucleus of an atom, nuclear energy, or weapons derived from nuclear reactions. It can also describe the central or most critical part of something.

Parts of Speech

• Adjective

Pronunciation

American English

• IPA Pronunciation: /ˈnuː.kli.ɚ/, /ˈnjuː.kli.ɚ/
• Respelling: NOO-klee-er, NYOO-klee-er

British English

• IPA Pronunciation: /ˈnjuː.kli.ə/
• Respelling: NYOO-klee-uh

Etymology

The word "nuclear" originates from the Latin "nucleus," meaning "kernel" or "core." The modern term was first used in the late 19th century to describe structures related to the nucleus of an atom or cell.

Derivatives

• Nuclearity (noun)
• Nuclearly (adverb)
• Nucleus (noun)
• Nucleation (noun)
• Nucleate (verb)

Synonyms

• Atomic
• Central
• Core

Antonyms

• Peripheral
• Non-atomic
• None

Usage

The term "nuclear" is used in contexts involving atomic science, energy, weapons, and figuratively for central importance. For example, "The country relies on nuclear power for electricity," or "Her role is nuclear to the project’s success."

Related Terms

• Fission: The splitting of an atomic nucleus to release energy.
• Fusion: The process of combining atomic nuclei to release energy.
• Radioactivity: The emission of radiation from unstable atomic nuclei.

Detailed Definitions

Adjective

• Relating to the nucleus of an atom or cell:
  • Example: "The nuclear membrane surrounds the genetic material."
• Relating to nuclear energy or weapons:
  • Example: "The treaty aimed to limit the proliferation of nuclear weapons."
• Describing the central or most crucial part of something:
  • Example: "The CEO’s decision was nuclear to the company’s strategy."