\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.'' --Clarendon.
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.