Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
fourthly
Fouta Djallon
fovea
fovea centralis
Foveaux Strait
foveola
Fowey
fowl
fowl pest
fowler
fowling
fowling piece
FOX
Fox (1)
Fox (2)
fox
Fox Glacier
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

fourth dimension
fourth di·men·sion


noun 
Definition:
 
time in relativity theory: time in relativity theory modified mathematically and used in combination with the usual three spatial dimensions to specify the location in space and time of events

fourth-di·men·sion·al adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft