definition

nouns

a concise explanation of the meaning of a word or phrase or symbol
is derived from
is a type of (narrower)
a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.
"the explanation was very simple"; "I expected a brief account"
clarity of outline
"exercise had given his muscles superior definition"
is derived from
is a type of (narrower)
the quality of being sharp and clear