ex·tract /ɪkˈstrækt, ||5 ˈɛkˌ/
  榨出物,精汁,選粹(vt.)摘錄,析取,吸取
  ex·tract /ɪkˈstrækt/ 及物動詞
  拔出,取出,提取,浸出物,抽提,提取液,提出物,浸膏,萃,萃取,蒸餾出,抽出,拔出,摘錄,選錄,推斷出,浸膏,提取物
  extract
  擷取; 抽取; 萃取
  extract
  取 萃取 擷取
  Ex·tract v. t. [imp. & p. p. Extracted; p. pr. & vb. n. Extracting.]
  1. To draw out or forth; to pull out; to remove forcibly from a fixed position, as by traction or suction, etc.; as, to extract a tooth from its socket, a stump from the earth, a splinter from the finger.
  The bee
  Sits on the bloom extracting liquid sweet.   --Milton.
  2. To withdraw by expression, distillation, or other mechanical or chemical process; as, to extract an essence.  Cf. Abstract, v. t., 6.
     Sunbeams may be extracted from cucumbers, but the process is tedious.
  3. To take by selection; to choose out; to cite or quote, as a passage from a book.
     I have extracted out of that pamphlet a few notorious falsehoods.   --Swift.
  To extract the root Math., to ascertain the root of a number or quantity.
  Ex·tract n.
  1. That which is extracted or drawn out.
  2. A portion of a book or document, separately transcribed; a citation; a quotation.
  3. A decoction, solution, or infusion made by dissolving out from any substance that which gives it its essential and characteristic virtue; essence; as, extract of beef; extract of dandelion; also, any substance so extracted, and characteristic of that from which it is obtained; as, quinine is the most important extract of Peruvian bark.
  4. Med. A solid preparation obtained by evaporating a solution of a drug, etc., or the fresh juice of a plant; -- distinguished from an abstract. See Abstract, n., 4.
  5. Old Chem. A peculiar principle once erroneously supposed to form the basis of all vegetable extracts; -- called also the extractive principle. [Obs.]
  6. Extraction; descent. [Obs.]
  7. Scots Law A draught or copy of writing; certified copy of the proceedings in an action and the judgement therein, with an order for execution.
  Fluid extract Med., a concentrated liquid preparation, containing a definite proportion of the active principles of a medicinal substance. At present a fluid gram of extract should represent a gram of the crude drug.
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  extract
       n 1: a solution obtained by steeping or soaking a substance
            (usually in water) [syn: infusion]
       2: a passage selected from a larger work; "he presented
          excerpts from William James' philosophical writings" [syn:
           excerpt, selection]
       v 1: draw or pull out, usually with some force or effort; also
            used in an abstract sense; "pull weeds"; "extract a bad
            tooth"; "take out a splinter"; "extract information from
            the telegram" [syn: pull out, pull, pull up, take
            out, draw out]
       2: get despite difficulties or obstacles; "I extracted a
          promise from the Dean for two ne positions"
       3: deduce (a principle) or construe (a meaning); "We drew out
          some interesting linguistic data from the native
          informant" [syn: educe, evoke, elicit, draw out]
       4: extract by the process of distillation; "distill the essence
          of this compound" [syn: distill, distil]
       5: separate (a metal) from an ore
       6: obtain from a substance, as by mechanical action; "Italians
          express coffee rather than filter it" [syn: press out, express]
       7: take out of a literary work in order to cite or copy [syn: excerpt,
           take out]
       8: calculate the root of a number