effloresce

• come into or as if into flower
• assume crystalline form
• become encrusted with crystals due to evaporation
• To blossom forth
• To change on the surface, or throughout, to a whitish, mealy, or crystalline powder, from a gradual decomposition, esp. from the loss of water, on simple exposure to the air
• To become covered with a whitish crust or light crystallization, from a slow chemical change between some of the ingredients of the matter covered and an acid proceeding commonly from an external source

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