英语词汇“alum-slate”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

alum-slate

释义

alum /alˈəm/

noun

Double sulphate of aluminium and potassium, with 24 molecules of water, crystallizing in transparent octahedra
Any similar compound of a trivalent metal (esp aluminium) and a univalent metal or radical

ORIGIN: L alūmen, -inis alum

alˈumish adjective

Having the character or taste of alum

alˈum-root noun

An American plant of the saxifrage family with astringent root

alˈum-shale or alˈum-slate noun

A slate consisting mainly of clay, iron pyrites and coaly matter, from which alum is obtained

alˈum-stone noun

Alunite

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