ETU
Encyclopedia
ETU may refer to:
- Elementary Time Unit
- Energy transfer upconversionEnergy transfer upconversionEnergy Transfer Upconversion or ETU is a physical principle that involves the excitation of a laser-active ion to a level above that which would be achieved by simple absorption of a pump photon, the required additional energy being transferred from another laser-active ion undergoing nonradiative...
- Electrical Trades Union, which may refer to one of two trade unions:
- Electrical Trades Union of AustraliaElectrical Trades Union of AustraliaThe Electrical Trades Union of Australia is a trade union in Australia which has a history stretching back over 100 years. In its modern form the ETU is a division of the Communications, Electrical and Plumbing Union , although it is possibly the most well known of the three divisions...
- a British trade union, a forerunner of the Electrical, Electronic, Telecommunications and Plumbing UnionElectrical, Electronic, Telecommunications and Plumbing UnionThe Electrical, Electronic, Telecommunications and Plumbing Union, known as the EETPU was a British trade union formed in 1968 as a union for electricians.-History:...
- Electrical Trades Union of Australia
- Ethylene thiourea, a fungicide and pesticide
- European Taekwondo UnionEuropean Taekwondo UnionThe European Taekwondo Union is the official governing body for all Taekwondo matters in Europe as a regional organisation of the World Taekwondo Federation. It comprises the National Taekwondo Federations of all the European member nations and regulates all Taekwondo matters on a continental basis...