Modal - Definition

adj 1: relating to or constituting the most frequent value in a
distribution; "the modal age at which American novelists
reach their peak is 30" [syn: modal(a), average]
2: of or relating to a musical mode; especially written in an
ecclesiastical mode
3: relating to or expressing the mood of a verb; "modal
auxiliary"
n 1: an auxiliary verb (such as `can' or `will') that is used to
express modality [syn: modal auxiliary verb, modal
auxiliary, modal verb, modal]