efflorescence

Definitions

General Science

  • noun the loss of some of the water of crystallisation from a crystalline salt

Construction

  • A whitish, powdery deposit of soluble salts carried to the surface of stone, brick, plaster, concrete, or mortar by moisture. The moisture evaporates, leaving the residue.

Real Estate

  • noun a powdery substance that forms on the surface of rocks and brickwork
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