What does deflocculated mean?
Deflocculated is a technical adjective meaning that particles are not gathered into loose aggregates called flocs. It is used particularly in chemistry, soil science, ceramics, and materials science to describe a dispersed or finely divided state, often in connection with colloidal suspensions or clay. The term is the adjectival form of deflocculate, which means to separate particles from flocs or to remove flocculation. A deflocculated system can change rapidly when conditions such as pH, salinity, or the presence of electrolytes alter the interactions between particles; adding a suitable electrolyte may cause the particles to flocculate again. The word is relatively uncommon outside specialist contexts, but it is useful because it names the opposite of a familiar physical state. It should not be confused with flocculated, which describes particles that have come together into visible or microscopic clumps.
adjectiveDescribing a substance, especially a colloidal suspension or clay system, in which particles are not gathered into flocs and remain relatively dispersed.
- Chiefly in chemistry, soil science, and materials science: not gathered into flocs; relatively dispersed or finely divided.
"The analyst measured the deflocculated suspension before adding the electrolyte."
"Adding the salt caused the previously deflocculated particles to flocculate."
"The sample was deflocculated before analysis, allowing the individual particles to be studied more closely."
Deflocculated is the name for a particle system that has refused to clump: a finely dispersed state that can reverse when conditions change.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of deflocculated
Deflocculated was formed in English by adding the prefix de- to flocculate, meaning to remove or reverse flocculation. Flocculate comes from Latin flocculus, a diminutive of floccus, meaning a lock or tuft of wool; the term developed in scientific usage for particles gathered into loose masses called flocs. English also has related forms such as flocculation, flocculent, and flocculus.
Related word forms
How deflocculated is actually used
A specialized and generally formal term, used mainly in scientific and technical writing. It is more common in laboratory, colloidal, ceramic, and soil-science contexts than in everyday speech.
Easily confused with deflocculated
Flocculated describes particles gathered into loose aggregates called flocs, whereas deflocculated describes particles that are dispersed or have been separated from such aggregates.