The Dictionary of Internal Security

Dictionary

English  
optically variable ink - adjective + noun MP3
 
Definitions  
Def: printing ink, which contains optically variable pigments which shows distinct colours depending on the angle it is viewed at or lighting
Example: Optically variable ink is used as an anti-counterfeiting measure.
 
Usage note  
OVI in short
Word family  
 
Collocations  
 
See also  
 
dic_connotations