factor IX

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Related to Factor ixa: factor VIII, Factor Xa

factor IX

n.
A protein substance in blood plasma that is essential for the clotting of blood. A deficiency of this factor is the cause of Christmas disease.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.factor IX - coagulation factor whose absence is associated with hemophilia B
clotting factor, coagulation factor - any of the factors in the blood whose actions are essential for blood coagulation
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References in periodicals archive ?
It is designed to bring together factor IXa and factor X, proteins required to activate the natural coagulation cascade and restore the blood clotting process for hemophilia A patients.
It has been developed to bring together factor IXa and factor X, which are proteins needed to activate the natural coagulation cascade and restore the blood clotting process for people with haemophilia A.
El factor IXa generado junto al FVIIIa, iones [Ca.sup.++] y fosfolipidos conforman el complejo "Tenasa Intrinseco", el cual asegura la eficiencia catalitica para activar al FX a la velocidad requerida en el momento de activarse el proceso de la coagulacion.