having hollow tubes (as for the passage of fluids)
in the form of tube or tubicle
a lightweight tire that has its tube sewn inside the casing. Also called a sew-up. The tire is glued to the rim.
A high-performance racing tire with the inner tube sewn inside the tire. The tire is then glued to a low-profile rim. Tubulars offer weight and strength advantages, but are hard to fix and maintain. Plus a bad gluing job can mean a tire failure in a sharp turn, and an ugly crash. Also called sew-ups.
Tube or funnel-shaped, when petals or sepals are joined, as in Scarlet Gilia.
The tree or plant leaf is shaped like a tube.
Having the form of a round or polygonal pipe or tube.