海かい面めん更こう正せいMeaningsNoun1. reduction (of pressure) to mean sea levelOther spellings海かい面めん校こう正せいUsage share unknownKanji used海sea面surface更all over again正correctKanji in other spellings校schoolComposed of海かい面めんsea level; (surface of) seaNoun更こう正せいcorrection; revision; rectificationNoun