used as comb. form (see -O) of L. sulcātus SULCATE a. in the sense sulcate and , as sulca:to-a·reolate, -co·state, -ri·mose adjs.
1852. Dana, Crust., II. 855. Epimerals and coxæ of six posterior legs slightly sulcato-areolate.
1866. Treas. Bot., 1110/2. Sulcato-rimose, furrowed and cracked like the cotyledons of a Spanish chestnut.
1887. W. Phillips, Brit. Discomycetes, 11. Stem sulcato-costate, and lacunose.