from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Containing two hydroxyl radicals.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Containing two hydroxyl functional groups.

from The Century Dictionary and Cyclopedia

  • In chem., containing two atoms of basic or easily replaceable hydrogen: as, sulphuric acid is a dihydric acid (H2SO4).


Sorry, no etymologies found.


  • 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.

    Nobel Prize in Chemistry 1939 - Presentation Speech

  • The aromatic dihydric alcohols are easily condensed with the different sulphonic acids and yield valuable tanning matters.

    Synthetic Tannins

  • 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.

    Synthetic Tannins


Log in or sign up to get involved in the conversation. It's quick and easy.