- (n.) In chemical analysis, the total nitrogenous material in vegetable or animal substances, obtained by multiplying the total nitrogen found by a factor, usually 6.25, assuming most proteids to contain approximately 16 per cent of nitrogen.
- (n.) A body now known as alkali albumin, but originally considered to be the basis of all albuminous substances, whence its name.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). protein. Retrieved September 20, 2026, from http://smartdefine.org/protein/definitions/2050179 |
| Chicago | Webster's. 2011. "protein" http://smartdefine.org/protein/definitions/2050179 (accessed September 20, 2026). |
| Harvard | Webster's 2011, protein, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/protein/definitions/2050179>. |
| MLA | Webster's. "protein" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/protein/definitions/2050179> |