U has various meanings in the Common Medical category. Discover the full forms, definitions, and usage contexts of U in Common Medical.
A code meaning "information not available. An unidentified target. An aircraft or ship that has not been determined to be hostile, friendly, or neutral using identification friend or foe and other techniques, but that must be tracked by air defense or naval engagement systems.
Common MedicalSelenocysteine is the 21st proteinogenic amino acid. It exists naturally in all kingdoms of life as a building block of selenoproteins. Selenocysteine is a cysteine analogue with a selenium-containing selenol group in place of the sulfur-containing thiol group.
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