| 单词 | lanthanon |
| 释义 | lanthanon (extremely rare) n WORD FAMILY lanthanon n any element of the lanthanide series (atomic numbers 57 through 71) Syn|Hypo|Hyper lanthanide, lanthanoid, rare earth, rare-earth element terbium metal a separate group of related lanthanides, including terbium, europium, gadolinium, and sometimes dysprosium group, grouping any number of entities (members) considered as a unit |
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