\Im*ag"i*nal\, a. [L. imaginalis.] 1. Characterized by imagination; imaginative; also, given to the use or rhetorical figures or imagins. 2. (Zo["o]l.) Of or pertaining to an imago. {Imaginal disks} (Zo["o]l.), masses of hypodermic cells, carried by the larv[ae] of some insects after leaving the egg, from which masses the wings and legs of the adult are subsequently formed.