• Webster's Revised Unabridged Dictionary
    • n Sassolin (Min) Native boric acid, found in saline incrustations on the borders of hot springs near Sasso, in the territory of Florence.
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Century Dictionary and Cyclopedia
    • n sassolin Native boracic acid, H3BO3, occurring more or less pure in irregular six-sided laminæ belonging to the triclinic system, or as a crust, or in stalactitic forms composed of small scales. It is white or yellowish, has a nacreous luster, and is friable. It occurs as a deposit from hot springs and ponds in the lagoons of Tuscany, and was first discovered near Sasso (whence the name) in the province of Florence.
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Chambers's Twentieth Century Dictionary
    • n Sassolin sas′ō-lin native boracic acid—first found near Sasso in Florence
    • Sassolin Also Sass′olite
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Webster's Revised Unabridged Dictionary
From Sasso, a town in Italy: cf. F. sassolin,