As u as...

Define u

As  u  as...

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Definition of u

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


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