Full Idea
'Conjunctive Normal Form' (CNF) is rearranging the occurrences of ∧ and ∨ so that no disjunction sign has any conjunction in its scope. This is achieved by applying two of the distribution laws.
Gist of Idea
'Conjunctive Normal Form' is ensuring that no disjunction has a conjunction within its scope
Source
David Bostock (Intermediate Logic [1997], 2.6)
Book Reference
Bostock,David: 'Intermediate Logic' [OUP 1997], p.39