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barothermograph

American  
[bar-uh-thur-muh-graf, -grahf] / ˌbær əˈθɜr məˌgræf, -ˌgrɑf /

noun

Meteorology.
  1. an automatic instrument for recording pressure and temperature.


Etymology

Origin of barothermograph

First recorded in 1895–1900; baro- + thermograph