Definition of extract:
that which is extracted or drawn out; a portion of a book or document, separately transcribed; a citation; a quotation
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; to withdraw by expression, distillation, or other mechanical or chemical process; as, to extract an essence. Cf. Abstract, v. t., 6
"please extract the third root of 27."