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According to WordNet, the noun "U" has 3 sense(s).
114660443 a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons.
115084357 a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine.
106833328 the 21st letter of the Roman alphabet.
- SUMO Mappings: Uranium (equivalent mapping)
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