guinea_gold has definitions from the fields of chemistry,metallurgy
1
[ noun ] (chemistry,metallurgy) brass with enough copper to give it a reddish tint; used for plumbing pipe and other brass hardware and in cheap jewelry

Synonyms

red_brass

Related terms

brass

2
[ noun ] (chemistry,metallurgy) 22-karat gold from which guinea coins were made

Related terms

gold

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