noun
- An amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cysteine. Retrieved September 28, 2026, from http://smartdefine.org/cysteine/definitions/1247502 |
| Chicago | WordNet. 2010. "cysteine" http://smartdefine.org/cysteine/definitions/1247502 (accessed September 28, 2026). |
| Harvard | WordNet 2010, cysteine, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/cysteine/definitions/1247502>. |
| MLA | WordNet. "cysteine" 23 October 2010. Web. 28 September 2026. <http://smartdefine.org/cysteine/definitions/1247502> |