And the Major knew, for his principal experience had been with a deliquescent society.
The Golden House|Charles Dudley Warner
It is a deliquescent salt, easily soluble in water, and has a bitterish taste.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley
The crystals of this salt, which are obtained with difficulty, are right rhombic prisms, and are deliquescent.
Relating to a solid substance that absorbs moisture from the air and becomes liquid. Deliquescent substances usually absorb so much moisture from the air that they form a strong solution. Potassium hydroxide is deliquescent.