U[Anglais]

adjectif satellite
1 : (chiefly British) of or appropriate to the upper classes especially in language use
nom
1 : the 21st letter of the Roman alphabet
2 : a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
3 : a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine