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6 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 ex·trac·tion /ɪkˈstrækʃən/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 ex·trac·tion /ɪkˈstrækʃən/ 名詞

From: Taiwan MOE computer dictionary


From: Network Terminology

 取 萃取 擷取

From: Webster's Revised Unabridged Dictionary (1913)

 Ex·trac·tion n.
 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.   --Milton.
 The extraction of roots. Math. (a) The operation of finding the root of a given number or quantity. (b) The method or rule by which the operation is performed; evolution.

From: WordNet (r) 2.0

      n 1: the process of obtaining something from a mixture or
           compound by chemical or physical or mechanical means
      2: properties attributable to your ancestry; "he comes from
         good origins" [syn: origin, descent]
      3: the act of pulling out (as a tooth); "the dentist gave her a
         local anesthetic prior to the extraction"