光こう合ごう成せいTop 25000MeaningsNoun1. photosynthesisKanji used光ray合come together成becomePitch accentこうごうせいUsed in vocabulary光こう合ごう成せい細さい菌きんphotosynthetic bacteriaNoun人じん工こう光こう合ごう成せいartificial photosynthesisNoun