noun
- Ion of calcium; a factor in the clotting of blood.
- synonyms: calcium ion
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). factor IV. Retrieved September 20, 2026, from http://smartdefine.org/factor_iv/definitions/1274332 |
| Chicago | WordNet. 2010. "factor IV" http://smartdefine.org/factor_iv/definitions/1274332 (accessed September 20, 2026). |
| Harvard | WordNet 2010, factor IV, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/factor_iv/definitions/1274332>. |
| MLA | WordNet. "factor IV" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/factor_iv/definitions/1274332> |