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Adjective: u  yoo
Usage: Brit
  1. (chiefly British) of or appropriate to the upper classes especially in language use
Noun: u  yoo
Usage: Brit
  1. The 21st letter of the Roman alphabet
    - U
Noun: U  yoo
  1. A heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
    - uranium, atomic number 92
     
  2. A base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
    - uracil

Derived forms: Us

See also: posh [Brit], upper-class

Type of: alphabetic character, base, letter, letter of the alphabet, metal, metallic element, nucleotide

Part of: Latin alphabet, pitchblende, ribonucleic acid, RNA, Roman alphabet, uraninite

Encyclopedia: U, Kasha & Shara Nelson