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effloresce

[ef-luh-res]

Origin

verb (used without object), -resced, -resc·ing.

to burst into bloom; blossom.

Chemistry.

to change either throughout or on the surface to a mealy or powdery substance upon exposure to air, as a crystalline substance through loss of water of crystallization.

to become incrusted or covered with crystals of salt or the like through evaporation or chemical change.

Origin:
1765–75; < Latin efflōrēscere to blossom out, equivalent to ef- ef- + flōrēscere to begin to bloom (flōr(i)-, stem of flōs flower + -ēscere -esce)

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Effloresce is always a great word to know.

So is polymer. Does it mean:

a compound of high molecular weight made by adding many smaller molecules or by condensation smaller molecules with the elimination of water or alcohol

of or containing titanium, especially in the tetravalent state or three valence state

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Collins

World English Dictionary

effloresce (ˌɛflɔːˈrɛs)

—vb
1.	to burst forth into or as if into flower; bloom
2.	to become powdery by loss of water or crystallization
3.	to become encrusted with powder or crystals as a result of chemical change or the evaporation of a solution

[C18: from Latin efflōrēscere to blossom, from flōrēscere, from flōs flower]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

effloresce

1775, from L. efflorescere, from ex "out" + florescere "to blossom," from flos (see flora).

American Heritage

Medical Dictionary

effloresce ef·flo·resce (ěf'lə-rěs')
v. ef·flo·resced, ef·flo·resc·ing, ef·flo·resc·es

To blossom; bloom.
To become a powder by losing water of crystallization, as when a hydrated crystal is exposed to air.

ef'flo·res'cence n.

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