Modal

Mo´dal

a.	1.	Of or pertaining to a mode or mood; consisting in mode or form only; relating to form; having the form without the essence or reality.
	2.	(Logic & Metaph.) Indicating, or pertaining to, some mode of conceiving existence, or of expressing thought, such as the modes of possibility or obligation.
	3.	(Gram.) Pertaining to or denoting mood.
n.	1.	(Gram.) A modal auxiliary.

Adj.	1.	modal - relating to or constituting the most frequent value in a distribution; "the modal age at which American novelists reach their peak is 30" Synonyms: average
	2.	modal - of or relating to a musical mode; especially written in an ecclesiastical mode
	3.	modal - relating to or expressing the mood of a verb; "modal auxiliary"

1.		modal - (Of an interface) Having mode s. Modeless interfaces are generally considered to be superior because the user does not have to remember which mode he is in.
2.		modal - See modal logic.
3.		modal - In MS Windows programming, A window with the label "WS_MODAL" will stay on the screen and claim all the user-input. Other windows can only be accessed if the MODAL window is closed. Such a window would typically be used for an error dialog box to warn the user for something important, like "Critical error, shut down the system and restart".