American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Containing two hydroxyl radicals.
Century Dictionary and Cyclopedia
- In chem., containing two atoms of basic or easily replaceable hydrogen: as, sulphuric acid is a dihydric acid (H2SO4).
“They also demonstrated its close relationship with pregnanediol, a physiologically inactive dihydric alcohol which Butenandt and Marrian had found independently of one another in the urine of pregnant women.”
“The aromatic dihydric alcohols are easily condensed with the different sulphonic acids and yield valuable tanning matters.”
“Amongst _aromatic alcohols_ the dihydric alcohols show characteristic behaviour; the latter combine with sulphonic acids with the elimination of water, condensation taking place without formaldehyde, and the resulting products being soluble in water and possessing tannoid properties.”
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