出典:Wiktionary
出典:『Wiktionary』 (2025/08/29 21:43 UTC 版)
From the combining form of Latin alumen + -a.
alumina (countable and uncountable, plural aluminas)
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a chemical compound called alumina
鉄鉱石.
生石灰.
zinced
an ion or radical derived from ammonia and by combination with a hydrogen ion or atom, called ammonium