factor XIII

noun
\-ˌthər(t)-ˈtēn, -ˈthər(t)- \

Medical Definition of factor XIII 

: a clotting factor that is catalyzed by thrombin during the final stage of clot formation to an active form which cross-links strands of fibrin resulting in a stable, insoluble clot

called also fibrinase

— see transglutaminase

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