Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
sideswipe
sidetrack
sidewalk
sidewalk superintendent
sidewall
sideward
sideways
sidewheel
sidewheeler
sidewinder
sidewinding
sidewise
Sidi-bel-Abbès
siding
sidle
Sidon
Sidra, Gulf of
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

siderostat
sid·er·o·stat [ síddərə stàt ] (plural sid·er·o·stats)


noun 
Definition:
 
clock-driven astronomical instrument: an astronomical instrument consisting of a plane mirror driven by a clock mechanism that keeps an astronomical object within the same field of view of a telescope
[Mid-19th century. < Latin sider- "star"]

sid·er·o·stat·ic [ sìddərə státtik ] 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