Word Pronunciation & Dictionary

nucleus

/ˈnuː.kli.əs/

Word Rarity Rare

Frequency: Zipf frequency 3.59 in modern English

Syllables
nu-cle-us
IPA
/ˈnuː.kli.əs/
9
Scrabble Score
7
Letters
3
Syllables
6
Unique Chars

Meaning

noun

The core, central part of something, around which other elements are assembled.

noun

An initial part or version that will receive additions.

noun

A ganglion, cluster of many neuronal bodies where synapsing occurs.

noun

The central part of a syllable, most commonly a vowel.

Example Sentences

Etymology

Etymology tree Proto-Italic *knuks Latin nux Latin nucleuslbor. English nucleus Learned borrowing from Latin nucleus (“kernel, core”). The earliest uses refer to the head of a comet and the kernel of a seed, both recorded in Lexicon Technicum in 1704. The sense in atomic physics was coined by British scientist Michael Faraday in 1844 in a theoretical meaning.

Regional Pronunciation

  • American English: /ˈnuː.kli.əs/
  • British English: /ˈnjuː.kli.əs/

Inflected Forms

Derived Forms

Phrases

Frequently Paired Words

Synonyms

Questions

How do you pronounce nucleus?
The recorded pronunciation is /ˈnuː.kli.əs/.
What does nucleus mean?
The core, central part of something, around which other elements are assembled.
Where does nucleus come from?
Etymology tree Proto-Italic *knuks Latin nux Latin nucleuslbor. English nucleus Learned borrowing from Latin nucleus (“kernel, core”). The earliest uses refer to the head of a comet and the kernel of a seed, both recorded in Lexicon Technicum in 1704. The sense in atomic physics was coined by British scientist Michael Faraday in 1844 in a theoretical meaning.

How to pronounce nucleus

  1. Open the pronunciation page — Open the Speakur entry for “nucleus”.
  2. Read the phonetic spelling — Read the IPA spelling (/ˈnuː.kli.əs/) so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “nucleus”.
  4. Repeat and practice — Say “nucleus” aloud, matching stress and vowels until it feels natural.