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Having the form of a small tube.

Any one of numerous species of Bryozoa belonging to Tubulipora and allied genera, having tubular calcareous calicles.

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.

A short tubular opening at the top of a retort, or at the top or side of a bottle; a tubulation.

A long wrought iron tube, on the end of which the workman gathers a quantity of "metal" (melted glass), and through which he blows to expand or shape it; -- called also blowing tube, and blowpipe.

A corm.

ssing together; familiar; in companionship. Humble folk ben Christes friends: they ben contubernial with the Lord, thy King. Chaucer.

A vacuum tube in which the exhaustion is carried to a very high degree, with the production of a distinct class of effects; -- so called from W. Crookes who introduced it.

A swelling or rising; protuberance. [R.] Moxon.

Extuberance. [R.]

Swollen out; protuberant. [R.] "Extuberant lips." Gayton.

To swell out. [Obs.] Cockeram.

Protuberance. [Obs.] Farindon.

A glass tube provided with platinum electrodes, and containing some gas under very low tension, which becomes luminous when an electrical discharge is passed through it; -- so called from the name of a noted maker in germany. It is called also Plücker tube, from the German physicist who devised it.

A highly exhausted glass tube with metallic electrodes nearly in contact so as to exhibit the insulating effects of a vacuum. It was used by the German physicist W. Hittorf (b. 1824).

Between tubes or tubules; as, intertubular cells; intertubular substance.

The introduction of a tube into an organ to keep it open, as into the larynx in croup.

A tube for producing Lenard rays.

Having many tubes; as, a multitubular boiler.

A bent tube used to determine the velocity of running water, by placing the curved end under water, and observing the height to which the fluid rises in the tube; a kind of current meter.