Word: u
a
- (chiefly British) of or appropriate to the upper classes especially in language use
n
- a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
- a nitrogen-containing base found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
- the 21st letter of the Roman alphabet
PROTOTYPE PAGE, Source: WordNet