horizon glass
Definitions
A half-silvered piece of glass mounted in a quadrant or sextant, so that the horizon can be seen at the same time as the reflection of a heavenly body.
Examples
“On the morning of August 25, shortly after breaking camp, he looked back with his horizon glass and caught a majestic glimpse of Cabezon Peak […].”
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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