To draw out; to pull out; to remove forcibly from a fixed position, as by traction or suction, etc.
to extract a tooth from its socket, a stump from the earth, or a splinter from the finger
To withdraw by expression, distillation, or other mechanical or chemical process. Compare abstract (transitive verb).
to extract an essential oil from a plant
To take by selection; to choose out; to cite or quote, as a passage from a book.
To select parts of a whole
We need to try to extract the positives from the defeat.
To determine (a root of a number).
Please extract the cube root of 27.