from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to hypophosphorous acid or its derivatives
from the GNU version of the Collaborative International Dictionary of English
- adj. Pertaining to, or containing, phosphorus in a lower state of oxidation than in phosphoric compounds.
from The Century Dictionary and Cyclopedia
- In chem., containing less oxygen than phosphorous acid contains.
From hypo- + phosphorous (Wiktionary)
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