modal: Meaning and Definition of

mod•al

1. of or pertaining to mode, manner, or form.
1. pertaining to mode, as distinguished from key.
2. based on a scale other than major or minor.
3. pertaining to or suitable for transportation involving only one form of a carrier, as truck, rail, or ship. Cf.(def. 3),
4. noting or pertaining to mood.
5. pertaining to a mode of a thing, as distinguished from one of its basic attributes or from its substance or matter.
6. exhibiting or expressing some phase of modality.

1. See