hassium

American  

[has-ee-uhm] / ˈhæs i əm /

noun

Chemistry, Physics.

1. a superheavy, synthetic, radioactive element with a very short half-life. Hs; 108.

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hassium British  

/ ˈhæsɪəm /

noun

1. a synthetic element produced in small quantities by high-energy ion bombardment. Symbol: Hs; atomic no: 108

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hassium Scientific  

/ hä′sē-əm /

1. A synthetic, radioactive element that is produced by bombarding lead with iron ions. Its known isotopes have mass numbers ranging from 263 to 277. Hs 277 has the longest confirmed half-life (16.5 minutes). Atomic number 108.

2. See Periodic Table

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Etymology

Origin of hassium

First recorded in 1980–85; officially assigned to element 108 in 1997; named after Medieval Latin Hassia (the German state of Hesse, location of the institute where it was first created); -ium ( def. )

Example Sentences

The most popular videos, such as Caesium and Oxygen, are of reactive elements, and surprisingly, even a synthetic element like hassium has attracted 32,000 views.

From Science Magazine