SkyfireDict

u   (TTS Sound)

The noun u has 3 senses

• uracil, U -- (a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine)


• uranium, U, atomic number 92 -- (a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons)


• U, u -- (the 21st letter of the Roman alphabet)

The adj u has 1 sense

• u -- ((chiefly British) of or appropriate to the upper classes especially in language use)