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.

Nearby words

  1. micacious,
  2. micah,
  3. micawber,
  4. miccosukee,
  5. mice,
  6. mich,
  7. mich.,
  8. michael,
  9. michael i,
  10. michael viii

Origin of micelle

1880–85; < New Latin mīcella, equivalent to Latin mīc(a) crumb, grain + -ella -elle

Related formsmi·cel·lar, adjectivemi·cel·lar·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for micelle


micell micella (mɪˈsɛlə)


  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 Formsmicellar, adjective

Word Origin for micelle

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