| 释义 |
- Science and technology
- Others
UDD may refer to: Science and technology- Ultra-dense deuterium
- Neutrons, which have quark configurations of udd, or up-down-down
- Ultradisperse diamond, another name for Detonation nanodiamond
- Urine-diversion dehydration toilet
- User driven development
Others- Uniform Distribution of Deaths, an assumption used in building actuarial life tables
- Bermuda Dunes Airport
- United Front for Democracy Against Dictatorship, a political movement in Thailand
- Universidad del Desarrollo private university in Chile
- Up dharma Down, a Filipino band
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