tube Meaning and Definition
1. n. an electric railway operating below the surface of the ground (usually in a city)
2. n. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
3. n. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
4. n. (anatomy) any hollow cylindrical body structure
5. n. a hollow cylindrical shape
6. v. place or enclose in a tube
7. v. ride or float on an inflated tube
8. v. convey in a tube
9. v. provide with a tube or insert a tube into
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Antonyms plug
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