Word.ws English Dictionary

cystein

cystein is the alternative form of cysteine.

Meaning of cysteine

Noun

cysteine (countable and uncountable, plural cysteines)

  1. A sulphur-containing nonessential amino acid C₃H₇NO₂S found in most animal proteins; it readily oxidizes to cystine.
    Synonyms:
    E910 when used as a food additive, E920 when used as an improving agent, Cys when viewed as a monomer in proteins

Forms of cystein

pluralcysteins

Words formed from cystein

Questions about cystein

What is cystein the alternative form of?
Cystein is the alternative form of cysteine.

Words near cystein in the dictionary

  1. cystectomized
  2. cystectomy
  3. cysted
  4. cysteic
  5. cysteic acid
  6. cystein
  7. cysteinal
  8. cysteinals
  9. cysteinate
  10. cysteinates
  11. cysteine

Source and license

Adapted from Wiktionary: cystein (page history and authors); cysteine (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “cystein.” Word.ws, https://word.ws/cystein. Based on Wiktionary, CC BY-SA 4.0.