factor IX


noun

Definition for factor ix (2 of 2)

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 (1 of 2)

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

Medicine definitions for factor ix (2 of 2)

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.