noun
millibar
A unit of pressure, especially associated with atmospheric pressure. It is understood in weather and scientific contexts, though modern Japanese weather reports usually use ヘクトパスカル.
台風の中心気圧は950ミリバールと記録されている。
The typhoon's central pressure is recorded as 950 millibars.
古い天気図で
On old weather maps, atmospheric pressure is sometimes shown in millibars.