One of the mysteries of the English language finally explained.
A loosely clumped mass of fine particles.
- ‘PAM is a water-soluble polymer that clumps the fine, suspended particles typical of swine manure into larger particles, or flocs.’
- ‘Microsand particles and polymer are added to the floc in the same tank.’
- ‘Because of the difficulties of moving the floc, emptying the tanks could take up to six months.’
- ‘This broadens the definition, because many of the self-buoyant microbes and plankton are collected in flocs as well.’
- ‘The flocs dispersed immediately when cells were resuspended in a glucose-citrate buffer.’
1920s: abbreviation of flocculus.
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