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zenith tube
Word Origin
noun
,
Astronomy.
1.
a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.
Expand
Also called
zenith telescope
.
Origin of
zenith tube
Expand
1830-1840
First recorded in
1830-40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Nearby words for zenith tube
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Word Value for
zenith
18
18
Scrabble
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