nucleus

Pronunciation

• (UK) IPA ^(key): /ˈnjuː.kli.əs/
• (US) IPA ^(key): /ˈnuːkli.əs/

• Audio (US)

  (file)

Noun

Singular nucleus

Plural nuclei or nucleuses

1. A nucleus is the center of a cell or atom.
2. The center of anything.