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supernatant

Babylon English English dictionary

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supernatant
adj. floating above or on the surface

Wikipedia English The Free Encyclopedia

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Precipitation (chemistry)
Precipitation is the formation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid. When the reaction occurs in a liquid solution, the solid formed is called the precipitate. The chemical that causes the solid to form is called the precipitant. Without sufficient force of gravity (settling) to bring the solid particles together, the precipitate remains in suspension. After sedimentation, especially when using a centrifuge to press it into a compact mass, the precipitate may be referred to as a pellet. The precipitate-free liquid remaining above the solid is called the supernate or supernatant. Powders derived from precipitation have also historically been known as flowers.

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WordNet 2.0 Dictionary

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supernatant

Noun
1. a liquid lying above a sediment (floating on the surface)
(hypernym) liquid

Adjective
1. of a liquid; floating on the surface above a sediment or precipitate; "the supernatant fat was skimmed off"
(similar) supported
(classification) chemistry, chemical science


Webster's Revised Unabridged Dictionary (1913)

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Supernatant
(n.)
The liquid remaining after solids suspended in the liquid have been sedimented by gravity or by centrifugation. Contrasted with the solid sediment, or (in centrifugation) the pellet.
  
 
(a.)
Swimming above; floating on the surface; as, oil supernatant on water.
  

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About

Free English-Vietnamese Dictionary

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supernatant
supernatant /,sju:pə'neitənt/
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