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micelle

[mi-sel] /mɪˈsɛl/
noun
1.
Physical Chemistry. an electrically charged particle formed by an aggregate of molecules and occurring in certain colloidal electrolyte solutions, as those of soaps and detergents.
Origin
1880-1885
1880-85; < Neo-Latin mīcella, equivalent to Latin mīc(a) crumb, grain + -ella -elle
Related forms
micellar, adjective
micellarly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for micelle
  • Each micelle is roughly spherical and about a tenth of a micrometer across.
British Dictionary definitions for micelle

micelle

/mɪˈsɛl/
noun
1.
(chem)
  1. a charged aggregate of molecules of colloidal size in a solution
  2. any molecular aggregate of colloidal size, such as a particle found in coal
Derived Forms
micellar, adjective
Word Origin
C19: from New Latin micella, diminutive of Latin mīca crumb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for micelle

in physical chemistry, a loosely bound aggregation of several tens or hundreds of atoms, ions (electrically charged atoms), or molecules, forming a colloidal particle-i.e., one of a number of ultramicroscopic particles dispersed through some continuous medium. Micelles are important in the chemistry of surfaces-e.g., the power of soap solutions to disperse organic compounds insoluble or only slightly soluble in water is explained as a property of micelles.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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