Synonyms for

Nucleus

Verb / ˈnu:kli:ʌs / Another word for nucleus — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

The central and most important part of an object, movement, or group, forming the basis for its activity and growth.

Synonyms & similar words

lensnucleus core cellnucleus coregroup karyon core center heart mainstay hub pivot focus crux essence substance kernel stuff meat marrow nub root seat base foundation groundwork

Synonyms by register

Formal

core center heart kernel

Informal

middle hub gist

Literary

crux marrow

Antonyms

periphery exterior outside surface margin circumference

Common collocations

  • atomic nucleus
  • cell nucleus
  • central nucleus
  • nucleus of an atom
  • nucleus of a cell
  • in the nucleus
  • around the nucleus

Word family

noun nucleus
adjective nuclear

Usage note

Primarily used in scientific contexts (biology, physics, chemistry) to refer to the central part of an atom or cell. Can also be used metaphorically for the central or most important part of something.

Example sentences

  1. The nucleus of a cell is like the brain of the cell.
  2. The nucleus of an atom is very small.
  3. The nucleus of a movement might be its leader.
  4. The nucleus of a group might be its most important member.
  5. The nucleus of a team might be its captain.

Quotes

  • The nucleus is the most important part of the cell, and it's where all the genetic material is stored. - Bonnie Bassler
  • The nucleus is the powerhouse of the cell. - Unknown
  • The nucleus is the fundamental unit of life. - Santiago Ramon y Cajal

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