Definition of alum glass in English:

alum glass

noun

rare

1A glassy form of alum produced especially by evaporating an aqueous solution (now historical).
2A kind of glass containing alumina.

Origin

Late Middle English. Compare Anglo-Norman alum de glace, alun de glas, Middle French alun de glace, lit. ‘ice alum’ and also Anglo-Norman alomglas; compare further (after French) Middle Dutch aluun van glaetse.

Definition of alum glass in US English:

alum glass

noun

rare

1A glassy form of alum produced especially by evaporating an aqueous solution (now historical).
2A kind of glass containing alumina.

Origin

Late Middle English. Compare Anglo-Norman alum de glace, alun de glas, Middle French alun de glace, lit. ‘ice alum’ and also Anglo-Norman alomglas; compare further (after French) Middle Dutch aluun van glaetse.

单词	alum glass
释义	Definition of alum glass in English: alum glass noun rare 1A glassy form of alum produced especially by evaporating an aqueous solution (now historical). 2A kind of glass containing alumina. Origin Late Middle English. Compare Anglo-Norman alum de glace, alun de glas, Middle French alun de glace, lit. ‘ice alum’ and also Anglo-Norman alomglas; compare further (after French) Middle Dutch aluun van glaetse. Definition of alum glass in US English: alum glass noun rare 1A glassy form of alum produced especially by evaporating an aqueous solution (now historical). 2A kind of glass containing alumina. Origin Late Middle English. Compare Anglo-Norman alum de glace, alun de glas, Middle French alun de glace, lit. ‘ice alum’ and also Anglo-Norman alomglas; compare further (after French) Middle Dutch aluun van glaetse.
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