factor IX


noun


Christmas factor

noun Biochemistry.

a blood constituent necessary for clotting, the absence of which is characterized by a hemophilialike condition.

Origin of Christmas factor

see origin at Christmas disease

Also called factor IX, plasma thromboplastic component.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


Medicine definitions for factor ix

factor IX

n.

A factor in the clotting of blood necessary for the formation of intrinsic blood thromboplastin; a deficiency of it causes hemophilia B.antihemophilic globulin B Christmas factor

Christmas factor

n.

factor IX

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.