Similar Words to U:
Atomic Number 92
Uracil
Uranium
Definitions of U:
1. A base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
2. A heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
3. The 21st letter of the Roman alphabet
4. (chiefly British) of or appropriate to the upper classes especially in language use