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Dictionary


sid•er•o•stat



Pronunciation: (sid'ur-u-stat"), [key]
n.
a telescopic device for reflecting the light of a star in a constant direction, the chief component of which is a plane mirror turned by a clock mechanism to correct for the rotation of the earth.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

siderosissidesaddle

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