Standard Lemma guide

casein

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈkeɪ.siːn/
  • Received-Pronunciation: /ˈkeɪ.siː.ɪn/
  • General-American: /ˈkeɪ.sin/
  • General-American: /keɪˈsin/
  • General-American: /ˈkeɪ.si.ɪn/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪsiːn
  • rhymes with -iːn
  • CMU ARPABET: K EY0 S IY1 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A protein present in both milk and in the seeds of leguminous plants.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a water-base paint made with a protein precipitated from milk

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: casein paint

Antonyms: none provided

Broader terms: water-base paint

3

noun

Meaning 3

a milk protein used in making e.g. plastics and adhesives

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: phosphoprotein

History

Etymology

From French caséine, formed from Latin cāseus (“cheese”) + -ine.

Across languages

Translations

23 source translations are retained for this English entry.

  • Bulgarian: казеи́н (kazeín) — protein
  • Catalan: caseïna — protein
  • Chinese Mandarin: 酪蛋白 (làodànbái) — protein
  • Czech: kasein — protein
  • Danish: kasein — protein
  • Esperanto: kazeino — protein
  • Finnish: kaseiini — protein
  • French: caséine — protein
  • Galician: caseína — protein
  • German: Kasein — protein
  • Ido: kazeino — protein
  • Indonesian: kasein — protein
  • Italian: caseina — protein
  • Japanese: 乾酪素 (kanrakuso) — protein
  • Macedonian: казеи́н (kazeín) — protein
  • Māori: pūmua kuruwhatu — protein
  • Norwegian Bokmål: kasein — protein
  • Norwegian Nynorsk: kasein — protein
  • Persian: کازئین (kâze'-in) — protein
  • Polish: kazeina — protein
  • Portuguese: caseína — protein
  • Spanish: caseína — protein
  • Swedish: kasein — protein
Real reading context

casein in complete knowledge articles