(n): a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
(n): a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
(n): any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
(n): the 21st letter of the Roman alphabet
(n): the conventional characters of the alphabet used to represent speech
(adj): (chiefly British) of or appropriate to the upper classes especially in language use
(adj): vs. lower-class) (vs. middle-class) -- (occupying the highest socioeconomic position in a society
short for you.
U. Chemical element symbol for Uranium.