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 the Appendix of 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 ?
Thought to be the most prominent protein in culture supernatants infected with SARS virus, the 46-kDa nucleocapsid protein can be detected by anti-nucleocapsid protein antibodies in SARS patients as early as 6 to 10 days post-infection.
Because these reconstituted samples had been stored at -80[degrees]C for >1 year, a centrifugation step (10 s at 24008) was performed to remove large particulate aggregates, and supernatants were reserved for RAP assay experiments.
After 5 days, supernatants were collected and used to infect fresh cell cultures.
Supernatants were removed, spun again for 15 min at 4[degrees]C at 10,000 x g, and the final supernatants were stored at -20[degrees]C.
The kit provides a complete solution for determining the levels of 12 cytokines from 10 sera or tissue culture supernatants simultaneously.
Given these shortcomings of existing techniques, we sought to develop a new high-throughput method for measuring Arg, ADMA, and SDMA in biological fluids such as plasma, urine, or cell culture supernatants.
Culture supernatants were used to infect human TE671,293T, and quail QT6/ACE2 cell lines.
Total cell lysates were centrifuged at 2,000 x g for 10 min and the supernatants were used as cytosolic fractions.
These two proteins are detected in culture supernatants of cells infected with SARS-CoV.
Viral RNA was also isolated from culture supernatants of the SARS-CoV isolate, TW1 (19), human coronavirus 229E strain, and human enteric coronavirus Dallas 1 strain (American Type Culture Collection, Manassas, VA).
After 24 hr of incubation, supernatants were collected and stored at -70 [degrees] C until analysis.