any of various instruments, esp a barometer, that measure atmospheric conditions
weatherglass in American English
(ˈwɛðərˌglæs)
noun
barometer (sense 1)
weatherglass in American English
(ˈweðərˌɡlæs, -ˌɡlɑːs)
noun
any of various instruments, as a barometer or a hygroscope, designed to indicate the state of the atmosphere
Word origin
[1620–30; weather + glass]This word is first recorded in the period 1620–30. Other words that entered Englishat around the same time include: contact, geometric, headline, hotbed, plug
Examples of 'weatherglass' in a sentence
weatherglass
It also closes when it rains, so it was widely known as the shepherd's weatherglass.
Times, Sunday Times (2015)
These close up in strong sunshine, and give the plant its other names of poor man's weatherglass and shepherd's sundial.
Times, Sunday Times (2007)
Other rural names such as poor man's weatherglass allude to the alacrity with which it closes before rain.