extract

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extract

1. a preparation containing the active principle or concentrated essence of a material
2. Pharmacol a solution of plant or animal tissue containing the active principle

Extract

 

a concentrated medicinal substance obtained from raw materials that contain certain active ingredients, such as glycosides, alkaloids, and vitamins; a type of galenical. Depending on the extracting agent used, extracts may be categorized as, for example, aqueous, alcoholic, or ethereal. Depending on the degree of thickening after evaporation, they may be classified as liquid, semiliquid (no more than 25 percent moisture), or dry (up to 5 percent moisture).

extract

[′ek‚strakt (noun) or ik′strakt (verb)]
(chemistry)
Material separated from liquid or solid mixture by a solvent.
(computer science)
To form a new computer word by extracting and putting together selected segments of given words.
To remove from a computer register or memory all items that meet a specified condition.
(metallurgy)
To separate a metal or a mineral from an ore by various chemical or mechanical methods.
(pharmacology)
A pharmaceutical preparation obtained by dissolving the active constituents of a drug with a suitable menstruum, evaporating the solvent, and adjusting to prescribed standards.
A preparation, usually in a concentrated form, obtained by treating plant or animal tissue with a solvent to remove desired odiferous, flavorful, or nutritive components of the tissue.

extract

To decompress. To restore the original files from a compressed archive (ZIP file, RAR file, etc.). See archive, data compression and archive formats.
References in periodicals archive ?
SUBLIVAC FIX Phleum pratense is an allergen extract of Phleum pratense pollen for sublingual use.
Attempted treatment with allergen-specific immunotherapy, where a patient received monthly injections with an allergen extract for three to five years, failed because it could cause anaphylaxis as a side effect.
Despite the difficulties we encountered in aerosolizing whole pollen grains, we chose to use whole pollen grains because they more closely approximate real-life exposure than does allergen extract.
Allergen immunotherapy involves administering gradually increasing doses of allergen extract to induce immune tolerance.
Patients were randomized to receive a once-daily tablet of Ambrosia artemisiifolia (ragweed) allergen extract at a dose of 6 Amb a 1-U or 12 Amb a 1-U or placebo for approximately 16 weeks prior to and throughout the ragweed pollen season, for a total treatment period of 52 weeks.
According to the Company, RAGWITEK is an allergen extract indicated as immunotherapy for the treatment of short ragweed pollen-induced allergic rhinitis with or without conjunctivitis confirmed by positive skin test or in vitro testing for pollen-specific IgE antibodies for short ragweed pollen.
SUBLIVAC FIX Birch is an allergen extract of birch pollen for sublingual use.
Microarray assays require <1 nL of allergen extract per test, which allows the use of the more expensive allergen extracts used for SPT in microarray production.
Normally, either a skin prick test is performed by introducing a small amount of the suspected allergen into the skin, or a basic blood test for antibodies to the allergen extract is carried out.
Mouse airways were exposed to house dust mite allergen extract to gauge the severity of disease and analyze biochemical responses in airway tissues.
Activated, washed microspheres were suspended in 50 [micro]L of diluted allergen extract (1:100 in PBS, pH 7.
TSX: PLB) announced today that they have entered into a Canadian development, promotion and distribution agreement for Oralair(TM), Stallergenes' allergen extract immunotherapy sublingual tablets.