thrombin

== English == === Etymology === From thromb- +‎ -in. === Pronunciation === IPA(key): /ˈθɹɒmbɪn/ === Noun === thrombin (countable and uncountable, plural thrombins) (biochemistry) An enzyme in blood that facilitates blood clotting by converting fibrinogen to fibrin (by means of ionized calcium). Alternative form: Thr (symbol) Synonym: factor II ==== Derived terms ==== ==== See also ==== lipoic acid thrombus