selenocysteine

== English == === Etymology === From seleno- + cysteine. === Noun === selenocysteine (countable and uncountable, plural selenocysteines) (biochemistry) A naturally-occurring amino acid, present in several enzymes, whose structure is that of cysteine but with the sulfur atom replaced by one of selenium ==== Derived terms ==== ==== Translations ==== === See also === selenoprotein