Learner's definition of EXTRACT
to remove (something) by pulling it out or cutting it out
He extracted a credit card from his wallet.
I had to have a tooth extracted.
The tumor was surgically extracted.
to get (information, a response, etc.) from someone who does not want to give it
to get (something, such as information) from something
to get (a substance) from something by the use of a machine or chemicals
The machines extract the juice from the apples.
oil extracted from sunflower seeds
venom extracted from poisonous snakes
to choose and take out (parts of a written work) for a separate use
to remove yourself from a difficult situation
a tooth extractor
a juice extractor