MSN home
Mail
My MSN
encarta
greeting cards
encarta
®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
upsilon
upslope
upspeak
upspring
upstage
upstairs
upstanding
upstart
upstate
upstream
upstream subsidy
upstretched
upstroke
upsucking
upsurge
upsweep
upswing
Also available:
World English Dictionary
Dictionnaire Français
uptime
up·time
[
úp tm
]
noun
Definition:
operating time:
the time during which a computer or other machine is operating or ready for use
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
MSN Privacy
Legal
Advertise
Feedback
Help
© 2009 Microsoft