| 单词 | dysprosium |
| 释义 | Word Frequency dysprosium(dɪsˈprəʊsɪəm) noun a soft silvery-white metallic element of the lanthanide series: used in laser materials and as a neutron absorber in nuclear control rods. Symbol: Dy; atomic no: 66; atomic wt: 162.50; valency: 3; relative density: 8.551; melting pt: 1412°C; boiling pt: 2567°C Word origin C20: New Latin, from Greek dusprositos difficult to get near + -ium |
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