di.dym.i.um

n.（名詞）
Symbol Di A metallic mixture, once considered an element, composed of neodymium and praseodymium.
符號 Di 釹鐠合金：一種金屬混合金屬，曾被當(dāng)作一個元素，是由釹和鐠組成的
A mixture of rare-earth elements and oxides used chiefly in manufacturing and coloring various forms of glass.
稀土與氧化物混合物：稀土元素和氧化物的混合物，這要用于制造和給各種形式的玻璃上色

來源：
From Greek didumos [twin, double] * see dwo-
源自 希臘語 didumos [成對的，兩的] *參見 dwo-