The following definitions apply under this article:

(a) Statement.

A "statement" is (1) an oral or written assertion or (2) nonverbal conduct of a person, if it is intended by the person as an assertion.

(b) Declarant.

A "declarant" is a person who makes a statement.

(c) Hearsay.

"Hearsay" is a statement, other than one made by the declarant while testifying at the trial or hearing, offered in evidence to prove the truth of the matter asserted.