guinea gold

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. brass with enough copper to give it a reddish tint;
used for plumbing pipe and other brass hardware and in cheap jewelry
• Syn:
red brass
• Hypernyms:
brass
2. 22-karat gold from which guinea coins were made
• Hypernyms:
gold, Au, atomic number 79