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 ?
This is rather critical, since many people doing off-label sublingual immunotherapy using multiple allergen extracts think that they know what they're doing.
3]) for 30 min, followed 4 hr later by allergen inhalation challenge with standardized and freeze-dried allergen extracts.
Grass allergen extracts, canine sera, and affinity-purified goat anti-canine IgE were kindly provided by Bill Mandy, BioMedical Services.
The evaluation results of the SPTs depended on the distance in between the applied allergens, the appropriate body part used for allergen application, types of instruments used (lancet or multi-test applicator), test season, and quality of the allergen extracts.
The message of this review is that we need more large randomized trials with better controls, modern high-quality allergen extracts that have proven themselves in other allergic diseases, and patient-centered outcome measures," according to Dr.
Tests using standard allergen extracts (Alk Abello) with negative and positive controls were conducted on all children.
The Veterinary surgeon who formulates the allergen extracts needs to consider factors such as local allergen distribution and pollination times.
Typically, the allergy clinic conducts a skin prick test in which droplets of different allergen extracts are put on the skin following which it is pricked with a sterile needle.
Before, I detail about the quality of allergen extracts, it is imperative to know how to interpret an allergy skin prick test.
Administered regularly over a period of a few years, these injections contain purified allergen extracts that desensitize your immune system to trouble-some substances such as foods, pollens and pet dander.