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nucleus

/ˈnuː.kli.əs/noun3 syllables

Nucleus means: a part of the cell containing DNA and RNA and responsible for growth and reproduction.

Synonyms for nucleus5

noun, as in a part of the cell containing DNA and RNA and responsible for growth and reproduction

cell nucleus, karyon

noun, as in a small group of indispensable persons or things

core, core group

noun, as in the central structure of the lens that is surrounded by the cortex

lens nucleus

What does nucleus mean?6

noun

1

a part of the cell containing DNA and RNA and responsible for growth and reproduction

2

a small group of indispensable persons or things“five periodicals make up the core of their publishing program”

3

the central structure of the lens that is surrounded by the cortex

4

the positively charged dense center of an atom

5

(astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail

6

any histologically identifiable mass of neural cell bodies in the brain or spinal cord

Definitions from the Open English WordNet, CC BY 4.0.

Nucleus in a sentence

  • The cytoplasm consists of proteins, the nucleus of nucleic acids.haukie
  • You two are the nucleus of the team.Zifre
  • A great deal of energy is locked up in the nucleus.CM
  • Electrons orbit around the nucleus of the atom.orcrist
  • Protons can be found at the nucleus of an atom.mervert1
  • A comet has a distinct center called a nucleus.Hybrid
  • A hazy cloud called a coma surrounds the comet's nucleus.Hybrid
  • The coma and the nucleus together form the comet's head.Hybrid

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

Forms of nucleus

as a noun

plural
nuclei