efflorescence

1. (исчисляемое, неисчисляемое)The production of flowers.

2. (исчисляемое, переносно, неисчисляемое)Rapid flowering of a culture or civilisation etc.

3. (исчисляемое, неисчисляемое)The formation of a powdery surface on crystals, as a hydrate is converted to anhydrous form by losing loosely bound water of crystallization to the atmosphere.

   Ausblühung, Effloreszenz

4. (исчисляемое, неисчисляемое)An encrustation of soluble salts, commonly white, deposited on the surface of stone, brick, plaster, or mortar; usually caused by free alkalies leached from mortar or adjacent concrete as moisture moves through it.

5. (исчисляемое, неисчисляемое)An encrustation of soluble salts, deposited on rock or soil by evaporation; often found in arid or geothermal environments.

6. (исчисляемое, неисчисляемое)A redness, rash, or eruption on the skin.

   any red eruption of the skin

правильный