hassium

noun

Etymology: From Latin Hassia (“Hesse”), the location of the institute where the element was first synthesized, + -ium.

1. An artificially-produced transuranic chemical element (symbol Hs) with atomic number 108.

   “The authors conclude that hassium may not exist in nature outside of star interiors.”

2. A single atom of this element.

   “This radioactive decay produces a hassium that lasts for several seconds.”