Definition of Extraction

(n.)
The act of extracting, or drawing out; as, the extraction of a tooth, of a bone or an arrow from the body, of a stump from earth, of a passage from a book, of an essence or tincture.
  

(n.)
That which is extracted; extract; essence.
  

(n.)
Derivation from a stock or family; lineage; descent; birth; the stock from which one has descended.
  

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extraction
\ex*trac"tion\ (?), n. [cf. f. extraction.]
1. the act of extracting, or drawing out; as, the extraction of a tooth, of a bone or an arrow from the body, of a stump from earth, of a passage from a book, of an essence or tincture.
2. derivation from a stock or family; lineage; descent; birth; the stock from which one has descended. "a family of ancient extraction."
3. that which is extracted; extract; essence. they [books] do preserve as in a vial the purest efficacy and extraction of that living intellect that bred them.

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  similar words(1) 

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 the extraction of roots 

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Noun
1. the process of obtaining something from a mixture or compound by chemical or physical or mechanical means
(hypernym) natural process, natural action, action, activity
(hyponym) dehydration, desiccation, drying up, evaporation
(derivation) extract
2. properties attributable to your ancestry; "he comes from good origins"
(synonym) origin, descent
(hypernym) ancestry, lineage, derivation, filiation
(hyponym) full blood
3. the act of pulling out (as a tooth); "the dentist gave her a local anesthetic prior to the extraction"
(hypernym) removal, remotion
(derivation) extract, pull out, pull, pull up, take out, draw out

A technique for separating components in a mixture that have different solubilities . For example, caffeine can be separated from coffee beans by washing the beans with supercritical fluid carbon dioxide; the caffeine dissolves in the carbon dioxide but flavor compounds do not. Vanillin can be extracted from vanilla beans by shaking the beans with an organic solvent, like ethanol.

(SPE). A sample-preparation technique that uses a solid-phase packing contained in a small plastic cartridge. The solid stationary phases are the same as HPLC packings; however the principle is different from HPLC. Sometimes referred to as digital chromatography. The process as most often practiced requires four steps: conditioning the sorbent, adding the sample, washing away the impurities, and eluting the sample in as small a volume as possible with a strong solvent. Using traditional HPLC packing materials, problems with channeling and plugging can occur. SPE columns that have been packed using PTFE to support the packing material (Empore) greatly reduce these problems.

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saseshaya

Removal