tuba (1)

[Lat.=a trumpet.] 1. Music: (1) A bra wind-instrument, the lowest as to pitch in the orchestra. It has five cylinders, and its compa is four octaves. (2) A high pre ure reed-stop of eight feet pitch on an organ. Called also Tuba mirabilis, Tuba major, Tromba, or Ophicleide. 2. Anat.: [TUBE.] *3. Bot.: A style. tu-bạ (2), s. [TOOBA.] IMG:content-1518.png:[blocks in formation] Mining: A sort of pickax. Called also a Beele. tubber-man, s. Mining: A man who uses a tubber. Called also a Beele-man. tub-bing, pr. par., a. & s. [TUB, v.] face of such a tube is called the throat. A tube may be long or short, cylindrical or angular, . (2) The staminiferous body formed when the stamens adhere to each other more or le completely by their filaments or their anthers, or both. 3. Chem.: [TEST-TUBE.] 4. Hydr.: The barrel of a chain-pump. 5. Ordn .: A primer for ordnance; a small cylinder placed in the vent of a gun, and containing a rapidly burning composition, whose ignition fires the powder of the charge. 6. Physiol.: The narrow, lengthened pipes or laterally enclosed channels by which the fluids of animals or vegetables are transmitted from one part of the structure to the other. 7. Steam : A pipe for water or fire in a steam boiler. It would be well to call water-pipes tubes and fire-pipes flues; but the practice is to call them flues or tubes according to their relatively large or small diameter respectively. [TUBULAR-BOILER.] 8. Surg .: A pipe or probe introduced into the larynx by the mouth or nostrils to aid in restoring respiration in asphyxia. (1) Lightning-tube: [FULGURITE.] (2) Pneumatic tubes : Aname given to a means of connecting stops and keys of an organ with distant soundboards and sliders by admitting a sudden puff of compre ed air into one end of a tube, to the other end of which a leather disc is attached, which is immediately forced upward, and acts upon any nece ary mechanism. (3) Tube of safety: [SAFETY-TUBE.] tube-brush, s. [FLUE-BRUSH.] tube-cast, subst . A cast, generally microscopic, formed within some capillary tube of the body, voided with the urine in albuminuria. [BRIGHT'S DISEASE.] It may be bloody, epithelial, fatty, fibrinous, granular, or waxy.