definition

definition /ˌdɛfəˈnɪʃən/ noun
plural definitions
definition
/ˌdɛfəˈnɪʃən/
noun
plural definitions
Britannica Dictionary definition of DEFINITION
1 
[count]
a  : an explanation of the meaning of a word, phrase, etc. : a statement that defines a word, phrase, etc.
b  : a statement that describes what something is
2 
[singular] : a clear or perfect example of a person or thing
3 
[noncount] : the quality that makes it possible to see the shape, outline, and details of something clearly
— see also high-definition

by definition

: because of what something or someone is : according to the definition of a word that is being used to describe someone or something