altazimuth-mounting

altazimuth mounting

noun
a mounting with two axes, to allow movement in both horizontal and vertical planes, used with telescopes, antennas, and precise surveying instruments.

Origin:
1875–80

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
altazimuth mounting
 
n
a telescope mounting that allows motion of the telescope about a vertical axis (in azimuth) and a horizontal axis (in altitude)

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