extract

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extract

 [ek´strakt]
a concentrated preparation of a vegetable or animal drug.
allergenic extract an extract of allergenic components from a crude preparation of an allergen, such as weed, grass, or tree pollen, molds, house dust, or animal dander, used for diagnostic skin testing or for immunotherapy for allergy.
cell-free extract the solution obtained by rupturing cells and removing all particulate matter.

ex·tract

(eks-trakt'),
1. A concentrated preparation of a drug obtained by removing the active constituents of the drug with suitable solvents, evaporating all or nearly all of the solvent, and adjusting the residual mass or powder to the prescribed standard.
2. To remove part of a mixture with a solvent.
3. To perform extraction.
[L. ex-traho, pp. -tractus, to draw out]

extract

(ĭk-străkt′)
tr.v. ex·tracted, ex·tracting, ex·tracts
To draw or pull out, often with great force or effort: extract a wisdom tooth; used tweezers to extract the splinter.

ex·tract′a·ble, ex·tract′i·ble adj.
ex·trac′tor n.

extract

noun A concentrate of a drug, cells or a supernatant.

verb To obtain a thing—often concentrated or distilled—from a source.

extract

noun A concentrate of a drug, cells, or a supernatant. See Adrenal extract, Cell-free extract, Fluid extract, Green extract, Plasmid extract verb Psychology Obtain.

ex·tract

1. (ek'strakt) A concentrated preparation of a drug obtained by removing the active constituents with suitable solvents, evaporating all or nearly all of the solvent, and adjusting the residual mass or powder to the prescribed standard.
2. (ek-strakt') To remove part of a mixture with a solvent.
3. To perform extraction.
[L. ex-traho, pp. -tractus, to draw out]

ex·tract

(eks-trakt, ekstrakt)
1. To perform extraction.
2. A concentrated drug preparation obtained by removing active constituents of the drug with suitable solvents, evaporating all or nearly all solvent, and adjusting residual mass or powder to the prescribed standard.
[L. ex-traho, pp. -tractus, to draw out]
References in periodicals archive ?
Pueyo M, Lopex-S JF, Rauret G (2000) Assessment of Ca[Cl.sub.2], NaN[O.sub.3] and N[H.sub.4]N[O.sub.3] extraction procedures for the study of Cd, Cu, Pb and Zn extractability in contaminated soils.
Extractability is an important property since the amount of protein available in the solution affects the functional properties expected from proteins (HRYNETS et al., 2011).
There were significant increases for Al in EC-A and the first two layers of CV-A plots likely because of depletion of [C.sub.org] and therefore an increase of Al extractability, as trivalent Ai binds more strongly to humic substances than all other major cations in soil solution (Tunega et al.
The accumulation of anthocyanins in the skins, and their extractability, are highly vintage-dependent, and technological and phenolic maturity often do not occur at the same time.
The extractability was not affected by further shaking, indicating that the equilibrium was attained within 12 h.
[13] studied the relationship between the modification in composition, structure, and extractability of cell wall polysaccharides and the alteration in volume expansion, microstructure, [T.sub.g], and rehydration behaviors, confirming that cell wall polysaccharide played a significant role in the physicochemical and physical properties of pitaya fruit chips.
Svejcar reported that the deficiency in alpha 1-chains may be the cause of the increase in crosslinking with a change in cleavage and extractability of collagen [5].
Effect of mechanical dough development on the extractability of wheat storage proteins from bread dough.
PET packaging is actually part of the drug development process when it's tested for leaching and extractability.
The FYM application decreased extractability of the native Zn from 3.5 mg [kg.sup.-1] to 2.4 mg [kg.sup.-1].