We found 2 dictionaries that define the word copper mines:

General (2 matching dictionaries)

1. copper mines: Vocabulary.com
2. copper-mines: Wordnik

(Note: See copper_mine as well.)

Definitions from WordNet (copper mine) ▸ noun:  a mine where copper is dug from the ground ▸ Also see copper_mine Phrases: Coniston copper mines, Mopani Copper Mines, more... ▸ Words similar to copper mines ▸ Usage examples for copper mines ▸ Idioms related to copper mines ▸ Wikipedia articles (New!) ▸ Words that often appear near copper mines ▸ Rhymes of copper mines ▸ Invented words related to copper mines