Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
antiferromagnetic
antifertility
antifoul
antifouling paint
antifreeze
antigen
antigen feeding
antigen receptor
antigenic drift
antigoglin
Antigone
antigorite
antigravity
Antigua and Barbuda
antihelix
antihero
antihistamine
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

antigenic drift
an·ti·gen·ic drift


noun 
Definition:
 
change in viral structure: changes of a minor nature in the antigenic structure of a virus strain. Antigenic drift is the result of natural selection after mixing with a partially immune population.
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft