- (n.) A tunnel for a tube railway; also (Colloq.), a tube railway.
- (n.) A vessel in animal bodies or plants, which conveys a fluid or other substance.
- (n.) A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm.
- (v.t.) To furnish with a tube; as, to tube a well.
- (n.) A telescope.
- (n.) A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe.
- (n.) A small pipe forming part of the boiler, containing water and surrounded by flame or hot gases or else surrounded by water and forming a flue for the gases to pass through.
- (n.) The narrow, hollow part of a gamopetalous corolla.
- (n.) One of the siphons of a bivalve mollusk.
- (n.) A priming tube or friction primer. See under Priming, and Friction.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). tube. Retrieved September 26, 2026, from http://smartdefine.org/tube/definitions/2075290 |
| Chicago | Webster's. 2011. "tube" http://smartdefine.org/tube/definitions/2075290 (accessed September 26, 2026). |
| Harvard | Webster's 2011, tube, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/tube/definitions/2075290>. |
| MLA | Webster's. "tube" 28 May 2011. Web. 26 September 2026. <http://smartdefine.org/tube/definitions/2075290> |