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.'' --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.

Source: Webster's Revised Unabridged Dictionary (1913)