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

  • n. A chemical compound containing the hydroxyl group.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An univalent anion (OH-1) based on the hydroxyl functional group.
  • n. Any substance containing such an anion.

from the GNU version of the Collaborative International Dictionary of English

  • n. A hydrate; a substance containing hydrogen and oxygen, made by combining water with an oxide, and yielding water by elimination. The hydroxides are regarded as compounds of hydroxyl, united usually with basic element or radical.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a compound of an oxide with water
  • n. a chemical compound containing the hydroxyl group


Sorry, no etymologies found.


  • But if we consider hydrogen as a gasiform metal, we naturally arrive at the conclusion that _water is the hydroxide of this gasiform metal_, that is _hydrogen hydroxide_, while gaseous hydrochloric and hydrosulphuric acids would be looked upon as respectively the chloride and the sulphide of the metal hydrogen.

    Scientific American Supplement No. 822, October 3, 1891

  • Calcium hydroxide is used as a processing agent, not a direct food additive.

    a molcajete, a clay comal, and some cal.

  • Either can be used to process corn into hominy or the base for masa, but cal hydroxide is easier to use and, usually, easier to find, Any building supply store will have it.

    Mexican Cookbooks

  • Calcium hydroxide is also called lime or builders 'lime.

    Mexican Cookbooks

  • The resomator is filled with water and potassium hydroxide, which is heated to around 160 degrees Celsius.

    Going Green In Death

  • It would stand roughly 1,000 feet tall with a footprint a little bigger than a football field, and be crisscrossed with scaffolding holding liquid sodium hydroxide, which is best known as lye.

    Curbing Emissions Won't Be Enough

  • And it's inconclusive, but it might be potassium hydroxide, which is a minor toxicity level.

    CNN Transcript Sep 18, 2006

  • The product of this reaction, potassium zincate, is a salt of zinc hydroxide, which is thus seen to have acid properties, though it usually acts as a base.

    An Elementary Study of Chemistry

  • This point of caution is made because of the reaction of the potassium or sodium hydroxide, which is actually one of destruction.

    The Science of Fingerprints Classification and Uses

  • The researchers added how 4-aminopyridine-3-methyl-hydroxide, which is 10 times stronger than 4-aminopyridine alone, could result in lower doses and fewer side effects than other drugs given to patients with spinal cord injuries, and even be used to treat nerve damage from multiple sclerosis, a chronic and often-disabling disease that also damages myelin.

    Spine-Health - Back Pain, Neck Pain, Lower Back Pain


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