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

  • adj. Containing water, especially water of crystallization or hydration.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. containing combined water; hydrated

from the GNU version of the Collaborative International Dictionary of English

  • adj. Containing water; watery.
  • adj. Containing water of hydration or crystallization.

from The Century Dictionary and Cyclopedia

  • Containing water; watery.
  • Containing hydrogen.

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

  • adj. containing combined water (especially water of crystallization as in a hydrate)


Sorry, no etymologies found.


  • The above program will provide humans with the ability to move about at will in the inner solar system, allowing us to reap the harvest of hydrous resources on certain asteroids/comets (water), and will provide the means for a sustainable profitable, global wealth building space program that will transform the future as much as oil transformed the 20th century.

    NAS Seeks Public Input on Space Goals - NASA Watch

  • Though drivers also consume massive amounts of hydrous ethanol, virtually pure alcohol, such a measure would ease demand for the biofuel.

    Tariff Move Is Bad Timing for Brazil

  • The current price of hydrous ethanol, a gasoline substitute in the Brazilian market is around 34 cents a liter.

    Brazil's Sugar Exports to Rise

  • Technically, gypsum is hydrous calcium sulfate because it has water in its crystal structure, CaSO4. 2H2O.


  • But if you search the keywords "hydrous ethanol" and "gasoline," you will find countless articles relating how it is being done successfully and has been for a very long time in places that were until recently considered third world countries without causing mileage losses or pollution like anhydrous ethanol does.

    Obama blindly supports anhydrous ethanol

  • But if we look at how these other countries use ethanol, we find they do it in a way that doesn't cause these problems while none of our leader seem to know the difference between hydrous and anhydrous ethanol.

    Obama blindly supports anhydrous ethanol

  • Why are we using anhydrous ethanol instead of hydrous ethanol?

    Obama blindly supports anhydrous ethanol

  • For whatever reason, no one challenged him with the fact that Brazil uses hydrous ethanol, not anhydrous ethanol.

    Obama blindly supports anhydrous ethanol

  • If you query experts on the issue, they will say that hydrous ethanol has water in it that can't be mixed with gasoline.

    Obama blindly supports anhydrous ethanol

  • "Epsom salts" refers to a specific hydrous magnesium sulfate mineral, made famous by its occurrence at a spring in southern England.



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