follow Dictionary.com

11 Trending Words of 2014

Christmas factor

noun, Biochemistry
1.
a blood constituent necessary for clotting, the absence of which is characterized by a hemophilialike condition.
Also called factor IX, plasma thromboplastic component.
Origin

factor IX

noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
factor-ix in Medicine

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. Also called antihemophilic globulin B, Christmas factor.

Christmas factor n.
See factor IX.

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

Word of the Day

Difficulty index for Christmas factor

Few English speakers likely know this word

Word Value for factor

11
12
Scrabble Words With Friends

Quotes with factor-ix