Emily Dickinson Lexicon

EX-TRAC'TION, n. [L. extractio.]

1. The act of drawing out; as, the extraction of a tooth; the extraction of a bone or an arrow from the body; the extraction of a fetus or child in midwifery.
2. Descent; lineage; birth; derivation of persons from a stock or family. Hence, the stock or family from which one has descended. We say, a man is of a noble extraction
3. In pharmacy, the operation of drawing essences, tinctures &c. from a substance. Encyc.
4. In arithmetic and algebra, the extraction of roots is the operation of finding the root of a given number or quantity; also, the method or rule by which the operation is performed.