| 单词 | dysprosium |
| 释义 | dysprosium /dis proh"see euhm, -shee-/, n. Chem. a rare-earth metallic element, highly reactive and paramagnetic, found in small amounts in various rare-earth minerals, as euxenite and monazite: used to absorb neutrons in nuclear reactors. Symbol: Dy; at. wt.: 162.50; at. no.: 66. [1885-90; < NL < Gk dysprós(itos) hard to get at (dys- DYS- + pros- to + itós, ptp. of iénai to go) + -IUM] |
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