weath·​er·​glass ˈwe-t͟hər-ˌglas How to pronounce weatherglass (audio)
: a simple instrument for showing changes in atmospheric pressure by the changing level of liquid in a spout connected with a closed reservoir
broadly : barometer

Word History

First Known Use

1695, in the meaning defined above

Time Traveler
The first known use of weatherglass was in 1695

Dictionary Entries Near weatherglass

Cite this Entry

“Weatherglass.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2024.

More from Merriam-Webster on weatherglass

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!