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Synonyms
ex·tract (ĭk-străkt́)

[Middle English extracten, from Latin extrahere, extract-, ex-, ex-, + trahere, to draw.]

transitive verb: -tract·ed, -tract·ing, -tracts. 

  1. To draw or pull out, often with great force or effort: extract a wisdom tooth; used tweezers to extract the splinter.
  2. To obtain despite resistance: extract a promise.
  3. To obtain from a substance by chemical or mechanical action, as by pressure, distillation, or evaporation.
  4. To remove for separate consideration or publication; excerpt.
    1. To derive or obtain (information, for example) from a source.
    2. To deduce (a principle or doctrine); construe (a meaning).
    3. To derive (pleasure or comfort) from an experience.
  5. Mathematics To determine or calculate (the root of a number).

noun 

Something extracted, especially:
  1. A passage from a literary work; an excerpt.
  2. A concentrated preparation of the essential constituents of a food, flavoring, or other substance; a concentrate: maple extract.

derivatives

ex·tract́a·ble
adjective
ex·traćtor
noun