In anatomy and zoology: Like a valve in form or function; resembling or serving for a valve; forming a valve; valvular; valviform: as, a valvate fold of membrane, Having a valve; provided with valves; valviferous; valvated: as, valvate vessels; a valvate orifice.In botany, united by the margins only, and opening as if by doors or valves, as the capsules of regularly dehiscent fruits, the anthers of certain Ericaceæ, and the parts of a perianth which in the bud meet without overlapping: said also of an estivation thus characterized.