Definition of elutriate in US English:



[with object]Chemistry
  • 1Separate (lighter and heavier particles in a mixture) by suspension in an upward flow of liquid or gas.

    • ‘We infer that the material for the largest dykes was elutriated from their host's matrix.’
    • ‘A scavenging, or sorting, model involves fluidization of poorly sorted Mawson Formation lapilli-tuffs, perhaps with a contribution from volcaniclastic rafts, with the fine particles elutriated then injected to form clastic dykes.’
    • ‘In the laboratory, the material from each core retained on the 250 - [micro] m mesh was elutriated in supersaturated sucrose solution to remove juvenile macrofauna and sediments were sorted to remove larger macrofauna.’
    • ‘Alternatively, the coarser grain-sized intrusions seen at outcrop may be testimony to high flow velocities during fluidization and injection, with any finer-grained sand or silt having been elutriated from the system.’
    1. 1.1 Purify by straining.


Mid 18th century: from Latin elutriat- ‘washed out’, from the verb elutriare, from e- (variant of ex-) ‘out’ + lutriare ‘to wash’.