軽けい金きん属ぞくけいきんぞくJLPTN2›じ字FuriganaMeanings1nounlight metalTechnical term for metals with low specific gravity, such as aluminum, magnesium, and titanium. Used in materials science and engineering contexts.アルミニウムは代だい表ひょう的てきな軽けい金きん属ぞくです。