夜や光こうTop 50000MeaningsNounNo-adjective1. nocturnal luminescence; noctilucenceKanji used夜night光rayPitch accentやこうUsed in vocabulary夜や光こう時計どけいluminous watch; luminous clockNoun夜や光こう塗と料りょうluminous paintNounやこうがいgreat green turban (Turbo marmoratus)Noun