Meaning of “definition” - Learner’s Dictionary

definition

noun uk us /ˌdefɪˈnɪʃən/
MEANING [ C ]

B2 an explanation of the meaning of a word or phrase:

a dictionary definition
IMAGE [ U ]

how clear an image of something is in a photograph or on a screen

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