Jisho

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Noun, Suru verb
1. efflorescence; loss of crystallization water to the airChemistry
Wikipedia definition
2. EfflorescenceIn chemistry, efflorescence (which means "to flower out" in French) is the loss of water (or a solvent) of crystallization from a hydrated or solvated salt to the atmosphere on exposure to air. Efflorescences can occur in natural and built environments. On porous construction materials it may present a cosmetic problem only, but can sometimes indicate serious structural weakness.
Read “Efflorescence” on English Wikipedia
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Read “Efflorescence” on DBpedia

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