dysprosium

[ dis-proh-see-uhm, -shee- ]

Phonetic (Standard)IPA

noun

, Chemistry.

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. : Dy; : 162.50; : 66.

dysprosium

/ dɪsˈprəʊsɪəm /

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

dysprosium

/ dĭs-prō′zē-əm /

A soft, silvery metallic element of the lanthanide series. Because it has a high melting point and absorbs neutrons well, dysprosium is used to help control nuclear reactions. Atomic number 66; atomic weight 162.50; melting point 1,407°C; boiling point 2,600°C; specific gravity 8.536; valence 3.
See Periodic Table

1885–90; < New Latin < Greek dysprós ( itos ) hard to get at ( dys- dys- + pros- to + itós, past participle of iénai to go) + -ium

C20: New Latin, from Greek dusprositos difficult to get near + -ium

April 19, 2024tortuous

[tawr-choo-uhs ]

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