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efflorescence - 6 dictionary results
Stop Efflorescence Salts
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Efflorescence Cleaner
 Clean efflorescence from concrete and bricks. Avoid dangerous acids.
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ef⋅flo⋅res⋅cence

  [ef-luh-res-uhns]
Use efflorescence in a Sentence
–noun
1. the state or a period of flowering.
2. an example or result of growth and development: These works are the efflorescence of his genius.
3. Chemistry.
a. the act or process of efflorescing.
b. the resulting powdery substance or incrustation.
4. Pathology. a rash or eruption of the skin.
Origin:
1620–30; < F < ML efflōrēscentia. See effloresce, -ence
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ef·flo·res·cence   (ěf'lə-rěs'əns)   
n.  
  1. Botany A state or time of flowering; anthesis.
    1. A gradual process of unfolding or developing.
    2. The highest point; the culmination. See Synonyms at bloom1.
    3. The deposit that results from the process of efflorescing. Also called bloom1.
    4. The process of efflorescing.
    5. A growth of salt crystals on a surface caused by evaporation of salt-laden water.
  3. Chemistry
    1. The deposit that results from the process of efflorescing. Also called bloom1.
    2. The process of efflorescing.
    3. A growth of salt crystals on a surface caused by evaporation of salt-laden water.
  4. Pathology Redness, a rash, or an eruption on the skin.
ef'flo·res'cent adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Efflorescence

Ef`flo*res"cence\, n. [F. efflorescence.]

1. (Bot.) Flowering, or state of flowering; the blooming of flowers; blowth.

2. (Med.) A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, etc.

3. (Chem.) (a) The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, etc. (b) The powder or crust thus formed.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Main Entry: ef·flo·res·cence
Pronunciation: "ef-l&-'res-&n(t)s
Function: noun
1 : the process ofefflorescing; also : the powder or crust so formed
2 : a redness of the skin or an eruption (as in a rash) —ef·flo·res·cent /-&nt/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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efflorescence   (ěf'lə-rěs'əns)  Pronunciation Key 
  1. A whitish, powdery deposit on the surface of rocks or soil in dry regions. It is formed as mineral-rich water rises to the surface through capillary action and then evaporates. Efflorescence usually consists of gypsum, salt, or calcite.
  2. See anthesis.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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efflorescence

spontaneous loss of water by a hydrated salt, which occurs when the aqueous vapor pressure of the hydrate is greater than the partial pressure of the water vapour in the air. For example, because the vapour pressures of washing soda (Na2CO310H2O) and Glauber's salt (Na2SO410H2O) normally exceed that of the water vapour in the atmosphere, these salts effloresce (i.e., lose all or part of their water of hydration), and their surfaces assume a powdery appearance. Hydrated cupric sulfate, or blue vitriol (CuSO45H2O), the aqueous vapour pressure of which is lower, undergoes efflorescence only if the air in contact with it is relatively dry. See also deliquescence.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Stop Efflorescence Salts
 Sealers that stop efflorescence Surface remains fully breathable
 www.drytreat.com
Efflorescence Cleaner
 Clean efflorescence from concrete and bricks. Avoid dangerous acids.
 www.RadonSeal.com