| 释义 |
lanthanum/ˈlænθənəm/n. Chem. a silvery metallic element of the lanthanide series which is used in the manufacture of alloys and catalysts (symbol 符 La) 【化】(化学元素)镧(似银的金属元素，属镧元素系，用于制造合金与催化剂) [Greek lanthanō ‘escape notice’, from having remained undetected in cerium oxide] |