noun
- A clear or yellow monobasic acid (H3PO2. ).
- synonyms: hypophosphorous acid, phosphorous acid
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). orthophosphorous acid. Retrieved September 21, 2026, from http://smartdefine.org/orthophosphorous_acid/definitions/1329215 |
| Chicago | WordNet. 2010. "orthophosphorous acid" http://smartdefine.org/orthophosphorous_acid/definitions/1329215 (accessed September 21, 2026). |
| Harvard | WordNet 2010, orthophosphorous acid, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/orthophosphorous_acid/definitions/1329215>. |
| MLA | WordNet. "orthophosphorous acid" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/orthophosphorous_acid/definitions/1329215> |