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u

English

  1. 🔊 (chiefly British) of or appropriate to the upper classes especially in language use
  2. 🔊 the 21st letter of the Roman alphabet
  3. 🔊 the 21st letter of the Roman alphabet
  4. 🔊 a heavy toxic silvery-white radioactive metallic element
  5. 🔊 a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine

Similar words

u u uranium atomic number 92 uracil