From Wikipedia, the free encyclopedia
ETU may refer to:
- Elementary Time Unit
- Energy transfer upconversion
- Electrical Trades Union, which may refer to one of two trade unions:
- Electrical Trades Union of Australia
- a British trade union, a forerunner of the Electrical, Electronic, Telecommunications and Plumbing Union
- Ethylene thiourea, a fungicide and pesticide
- European Taekwondo Union
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