noun
hectopascal
Unit of pressure equal to 100 pascals; commonly used in weather reports for atmospheric pressure.
台風の中心気圧は950ヘクトパスカルです。
The central pressure of the typhoon is 950 hectopascals.
天気図には等圧線が4ヘクトパスカルごとに引かれ
On the weather map, isobars are drawn every 4 hectopascals.