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meridian circle
noun
, Astronomy.
- a transit instrument provided with a graduated vertical scale, used to measure the declinations of heavenly bodies and to determine the time of meridian transits.
meridian circle
noun
- an instrument used in astronomy for determining the declination and right ascension of stars. It consists of a telescope attached to a graduated circle
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Word History and Origins
Origin of meridian circle1
First recorded in 1540–50
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Example Sentences
Through a slot in this post passes a graduated meridian circle within which the globe ball revolves.
From Project Gutenberg
The meridian circle of iron, likewise, is not graduated, and like the wooden base is not a part of the original mounting.
From Project Gutenberg
Through this horizon circle passes an adjustable meridian circle 39 cm.
From Project Gutenberg
Its meridian circle is a comparatively recent and very clumsy substitute of wood for the original which doubtless was of brass.
From Project Gutenberg
The meridian circle of wood, within which the sphere is made to revolve, is graduated.
From Project Gutenberg
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