硬こう化か剤ざいMeaningsNoun1. hardener; curative agent; stiffening agentKanji used硬hard like a rock化transformation剤chemical substancePitch accentこうかざいComposed of硬こう化かhardening; vulcanization; vulcanisation; sclerosis; curing; hardening (of attitude, stance, etc.); stiffening; toughening; upturn (in the market); firming upNoun剤ざいmedicine; agent; (chemical) substance; drug; doseSuffix