U
- noun
- /juː/
- Specialized
- Therefore, there must have been several times more 238 U to start with.
- 235 U
- U = 44.5, z
- U =
Examples
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The fuel was 235 U borne in thin, curved plates.
Academic text (2002) -
The modules use standard 5% enriched U-235 uranium and have a 4.5-year operating cycle between refuelings.
Blog text (14) -
- This is accelerated and expelled by a nuclear reactor, enriched largely by the use of a fissible U-235 isotope, giving the necessary thrust to the interplanetary mission.
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The scientist measured the levels of U in the soil near the nuclear facility to assess contamination.
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In nuclear chemistry, U is essential as it serves as a fuel for reactors due to its radioactive properties.
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Before the experiment, they ensured that all U materials were securely stored to prevent accidents.
Synonyms
A heavy radioactive metal used as fuel in power plants and to make nuclear weapons
Idioms
Compounds
- Archaic
A style of comedy that people see as middle-class or working-class and less formal
Surface Forms
Etymology
U as a chemical symbol comes from the element name uranium, which was named after the planet Uranus, a name that means 'sky'. So remember 'U for Uranus' to help you recall that U is the metal used in nuclear fuel.