Meaning of speculum metal | Babel Free
Definitions
A mixture of around two-thirds copper and one-third tin making a white brittle alloy that can be polished into a highly reflective surface.
uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.