Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
illuvium
Illyria
Illyrian
ilmenite
ILO
Iloilo
Ilorin
ILS
IM
im
im- (1)
im- (2)
image
image compression
image converter
image intensifier
image-maker
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

imaginary unit

i·mag·i·nar·y u·nit (plural i·mag·i·nar·y u·nits)


noun 
Definition:
 
root of -1: the positive square root of minus one

Advertisement

© 2009 Microsoft