- pyrolusite (n.)
[pyrolusite 词源字典]
- "manganese dioxide," 1828, the name given in Roman times, when it was used, in a heated state, to de-colorize glass, from Greek elements pyro- "by heat, by fire" (see pyro-) + lysis "a loosening" (see lose).[pyrolusite etymology, pyrolusite origin, 英语词源]