Definition

noun

Something that is extracted or drawn out.
A portion of a book or document, incorporated distinctly in another work; a citation; a quotation.
“I used an extract of Hemingway's book to demonstrate culture shock.”
A decoction, solution, or infusion made by drawing out from any substance that which gives it its essential and characteristic virtue
“extract of beef”
Any substance extracted is such a way, and characteristic of that from which it is obtained
“quinine is the most important extract of Peruvian bark.”
A solid preparation obtained by evaporating a solution of a drug, etc., or the fresh juice of a plant (distinguished from an abstract).

verb

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.”