from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any salt that forms crystals containing water of crystallization only at low temperatures

from the GNU version of the Collaborative International Dictionary of English

  • n. A substance, as salt, ammonium chloride, etc., which crystallizes with water of crystallization only at low temperatures, or below the freezing point of water.

from The Century Dictionary and Cyclopedia

  • n. A definite mixture of ice and any crystallized salt obtained by freezing a saturated aqueous solution of the salt.


cryo- +‎ hydrate (Wiktionary)



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