Lexic.us

Definition of U

1. Noun. A base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine.

2. Adjective. (chiefly British) of or appropriate to the upper classes especially in language use.

3. Noun. A heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons.

4. Noun. The 21st letter of the Roman alphabet.

Medical Definition of U

1. A variable commonly used for energy density of electric or magnetic fields, also sometimes used for velocity. (09 Oct 1997)

Lexicographical Neighbors of U

T even phage T fibre T group T helper cell T hinge T loop of RNA T lymphocyte T myelotomy T suppressor cell T system

t test T tube T tubule T wave u (current term) U u-50488 U-boat u-drive u-score method

U-shaped u-turn U.S. U.S.A. U.S. Army Criminal Investigation Laboratory U.S. Congress U.S. government U.S. House U.S. House of Representatives U.S. Mint

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