extract (redirected from allergen extract)

Extract

To decompress. WinZip and other decompression utilities use the term to mean "pulling out" the original files from the compressed archive. See WinZip and data compression.

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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

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extract [′ek‚strakt (noun)orik′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.