explication

nouns

the act of making clear or removing obscurity from the meaning of a word or symbol or expression etc.
is derived from
is a type of (narrower)
the act of explaining; making something plain or intelligible
"I heard his explanation of the accident"
a detailed explanation of the meaning of something
is derived from
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"