Definition of U
- 1. A base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine Noun
- 2. A heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons Noun
- 3. The 21st letter of the Roman alphabet Noun
- 4. (chiefly British) of or appropriate to the upper classes especially in language use Adjective Satellite
Synonyms for word "u"
Semanticaly linked words with "u"
Hyponims for word "u"