| 释义 |
praseodymium/preiziəˈdimiəm/n. Chem. a soft silvery metallic element of the lanthanide series, occurring naturally in various minerals and used in catalyst mixtures (symbol 符 Pr) 【化】(化学元素)镨 [German Praseodym, from Greek prasios (see PRASE, from its green salts) + German Didym DIDYMIUM] |