supernatant

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su·per·na·tant

 (so͞o′pər-nāt′nt)
adj.
Floating on the surface.
n. also su·per·nate (so͞o′pər-nāt′)
The clear fluid above a sediment or precipitate.

[Latin supernatāns, supernatant-, present participle of supernatāre, to float : super-, super- + natāre, to swim, frequentative of nāre; see snā- in Indo-European roots.]

supernatant

(ˌsuːpəˈneɪtənt)
adj
1. floating on the surface or over something
2. (Chemistry) chem (of a liquid) lying above a sediment or settled precipitate
[C17: from Latin supernatāre to float, from super- + natāre to swim]
ˌsupernaˈtation n

su•per•na•tant

(ˌsu pərˈneɪt nt)

adj.
floating above or on the surface.
[1655–65; < Latin supernatant-, s. of supernatāns, present participle of supernatāre to swim above. See super-, natant]

supernatant

- Means "swimming on the surface."
See also related terms for swimming.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.supernatant - the clear liquid that lies above a sediment or precipitate
liquid - a substance that is liquid at room temperature and pressure
Adj.1.supernatant - of a liquid; floating on the surface above a sediment or precipitate; "the supernatant fat was skimmed off"
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
supported - held up or having the weight borne especially from below; "supported joints in a railroad track have ties directly under the rail ends"
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References in periodicals archive ?
A 2 mL aliquot of freshly prepared 25% (250 mL/L) meta-phosphoric acid was added to 8 mL of strained ruminal fluid; the mixture was centrifuged (17,000 g for 10 min), and the supernatant fluid was stored at -20[degrees]C for determination of the volatile fatty acids (VFA).
The supernatant was transferred to a microcentrifuge tube, and total cell membranes were precipitated from the supernatant fluid by centrifugation at 15,000 x g for 30 min at 4 C.
The biosurfactant produced by the bacterial isolates PDKT-1, PDKT-2, PDKT-5 were extracted from the 2 ml of supernatant fluid with 2ml chloroform, dried with Na2SO4 and evaporated on a rotary evaporator.