Resembling, or in the form of, a tube; longitudinally hollow; specifically (Bot.), having a hollow cylindrical corolla, often expanded or toothed at the border; as, a tubulose flower.
2.
Containing, or consisting of, small tubes; specifically (Bot.), composed wholly of tubulous florets; as, a tubulous compound flower.
Tubulous boiler, a steam boiler composed chiefly of tubes containing water and surrounded by flame and hot gases; sometimes distinguished from tubular boiler.
