ˈslidingly,adv. [f. sliding ppl. a.] In a sliding manner; with a smooth, gliding movement. 1644Digby Nat. Bodies xiv. §7. 120 They come slidingly one ouer an other.1870Lowell Among my Bks.Ser. i. (1873) 23 What a slidingly musical use he makes of the sibilants.