過か換かん気き症しょう候こう群ぐんMeaningsNoun1. hyperventilation syndromeKanji used過surpass something換exchange気state of mind症medical condition候season群a pack (e.g. of dogs)Pitch accentかかんきしょうこうぐんComposed of過かsurplus-; excess-; over-; per- (chemical with more of a certain element than found in other compounds of the same constituents)Prefix換かん気きventilationNoun症しょう候こう群ぐんsyndromeNoun