WHAT IS A BAROMETER? Share with your friends Share 1 Aryan Jindal answered this A Barometer is an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude. 3 View Full Answer Gorgeous Zehra answered this AN INSTRUMENT MEASURING ATMOSPHERIC PRESSURE,USED ESPECIALLY IN FORECASTING THE WEATHER AND DETERMINING ALTITUDE. 4 Adarsh Chauhan answered this Barometer is used to measure atmospheric pressure 2 Sugandh answered this Barometer is a device used for measuring the atmospheric pressure. 3 Hemant Gupta answered this barometer is a device that is used to measure air pressure 2 Rishabh Roy answered this barometer is an meteorological instrument used for measuring atmospheric pressure. 2 Madhura Nawale answered this The instrument used to measure atmospheric pressure is called a barometer. There are 2 types of barometer: 1. Mercury Barometer. 2. Fortin Barometer. 2 Pratham Powar answered this it measures atmospheric pressure . it is of two types *Mercury barometer *Aneroid barometer 1 Rohit Bhardwaj answered this It is an instrument to measure atmospheric pressure. 0 Arsalan Ansari answered this instrument to measure pressure 0