How To Use Roman NumeralsRoman numerals are a collection of symbols that make up the number system that was used by the ancient Romans. Today, Roman numerals are more commonly used in titles, to number parts of works, in music theory, and on clock faces. Where do you see Roman numerals most often? The Symbols The Roman numeral system uses only seven symbols: I, V, X, L, C, D, …
Definition for factor ix (2 of 2)
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)
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)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.