Where does this definition of copper-bottomed come from?
This entry for copper-bottomed is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is copper-bottomed a noun, verb, or something else?
In this entry, copper-bottomed is tagged as 2adj..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.