def·i·ni·tion 
/ˌdɛfəˈnɪʃən/ noun
plural def·i·ni·tions /ˌdɛfəˈnɪʃən/ noun 1 [count] a : an explanation of the meaning of a word, phrase, etc. : a statement that defines a word, phrase, etc.
▪ dictionary definitions
b : a statement that describes what something is
▪ What is the legal definition of a corporation? ▪ a definition of happiness 2 [singular] : a clear or perfect example of a person or thing
▪ He was the very definition of a gentleman. [=he was a perfect gentleman] ▪ A week of fishing is my definition of a vacation. 3 [noncount] : the quality that makes it possible to see the shape, outline, and details of something clearly
▪ muscle definition ▪ The picture lacks definition. [=the picture is not sharp/clear] ▪ a monitor with good definition and vibrant colors — see also high-definition
▪ dictionary definitions
b : a statement that describes what something is
▪ What is the legal definition of a corporation? ▪ a definition of happiness
▪ He was the very definition of a gentleman. [=he was a perfect gentleman] ▪ A week of fishing is my definition of a vacation.
▪ muscle definition ▪ The picture lacks definition. [=the picture is not sharp/clear] ▪ a monitor with good definition and vibrant colors — 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
▪ A volunteer by definition is not paid. ▪ A glider is by definition an aircraft with no engine.
▪ A volunteer by definition is not paid. ▪ A glider is by definition an aircraft with no engine.
