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Definition of Colloidal

Babylon English

resembling a colloid (sticky substance composed of particles that do not dissolve in other substances)
Colloidal Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(a.)
Pertaining to, or of the nature of, colloids.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
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 colloidal suspension 
 colloidal solution 
WordNet 2.0

Adjective
1. of or relating to or having the properties of a colloid
(pertainym) colloid
Colloidal Definition from Business & Finance Dictionaries & Glossaries
Glossary of petroleum Industry
pertaining to a colloid; involving particles so minute they are not visible through optical microscopes. Bentonite is an example of a colloidal clay.
Colloidal Definition from Science & Technology Dictionaries & Glossaries
Moxie International's Glossary of Concrete Terms
A gel-like mass which does not allow the transfer of ions
Technical English by wpv
A state of suspension in a liquid medium in which extremely small particles are suspended and dispersed but not dissolved.
Colloidal Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
A colloid is a substance in which microscopically dispersed insoluble particles are suspended throughout another substance. Sometimes the dispersed substance alone is called the colloid; the term colloidal suspension refers unambiguously to the overall mixture (although a narrower sense of the word suspension is contradistinguished from colloids by larger particle size). Unlike a solution, whose solute and solvent constitute only one phase, a colloid has a dispersed phase (the suspended particles) and a continuous phase (the medium of suspension). To qualify as a colloid, the mixture must be one that does not settle or would take a very long time to settle appreciably.

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