| 释义 |
di·dym·i·um
\dīˈdimēəm\ noun
(-s)
Etymology: New Latin, from didym- + -ium
: a mixture of rare-earth elements that is freed from cerium, contains chiefly neodymium and praseodymium usually associated with lanthanum, was once regarded as an element (symbol Di), and is used in coloring glass for optical filters |