sepaline,a.|ˈsɛpəlɪn| [ad.mod.L. sepalīn-us, f.sepal-um: see sepal and -ine.] Of or belonging to the sepal of a flower. 1857A. Gray First Less. Bot. (1866) Gloss., Sepaline, relating to the sepals.1870Hooker Stud. Flora 11 Aconitum..covered by the sepaline hood.