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weather +‎ glass


weatherglass (plural weatherglasses)

  1. An instrument to indicate the state of the atmosphere, especially changes of atmospheric pressure, and hence changes of weather, such as a barometer or baroscope.

Derived terms[edit]

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for weatherglass in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)