[too-buh, tyoo-] 
[-bee] for 1c. | 1. | Music.
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| 2. | Meteorology. funnel cloud. |
| a rapidly rotating funnel-shaped cloud extending downward from the base of a cumulonimbus cloud, which, if it touches the surface of the earth, is a tornado or waterspout. |
The lowest-pitched of the brass instruments. In orchestras, the tuba is usually held across the player's lap. In marching bands, the sousaphone is generally used as a low brass instrument because it was designed to be carried.
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