Meaning of “extract” - Learner’s Dictionary

extract

noun [ C ] uk us /ˈekstrækt/
WRITING

B2 a particular part of a book, poem, etc that is chosen so that it can be used in a discussion, article, etc:

The teacher read out an extract from 'Brave New World'.
SUBSTANCE

a substance taken from a plant, flower, etc and used especially in food or medicine:

pure vanilla extract

(Definition of “extract noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)