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Dictionary definition for: Tube
1. (n) conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
2. (v) provide with a tube or insert a tube into
3. (n) electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
4. (v) convey in a tube; "inside Paris, they used to tube mail"
5. (n) a hollow cylindrical shape
6. (v) ride or float on an inflated tube; "We tubed down the river on a hot summer day"
7. (n) (anatomy) any hollow cylindrical body structure
8. (v) place or enclose in a tube
9. (n) electric underground railway
WordNet 2.1 Copyright Princeton University. All rights reserved.
