• Webster's Revised Unabridged Dictionary
    • n Gaylussite (Min) A yellowish white, translucent mineral, consisting of the carbonates of lime and soda, with water.
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Century Dictionary and Cyclopedia
    • n gaylussite A mineral occurring in monoclinic crystals, and consisting of the carbonates of calcium and sodium, in nearly equal quantities, with water. It is found in Peru, and is also abundant in a saline lake near Ragtown in Nevada.
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Webster's Revised Unabridged Dictionary
Named after Gay-Lussac, the French chemist