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

Related words...

Search for U at other dictionaries: OneLook, Oxford, American Heritage, Merriam-Webster, Wikipedia

Help  Advanced  Feedback  Android  iPhone/iPad  API  Blog  Privacy

Copyright © 2021 Datamuse