I came across the following definition:
A/an and the are articles. They are a type of determiner and they go before a noun.
(https://dictionary.cambridge.org/grammar/british-grammar/determiners/a-an-and-the)
Consider the following examples:
Stuart is an intelligent boy.
That was an excellent meal.
Here intelligent and excellent are adjectives. I don't understand why we have used "an" before an adjective. I mean the definition says that "an" go before a noun.
Kindly clarify.