Advertisement

Advertisement

positronium

[ poz-i-troh-nee-uhm ]

noun

, Physics.
  1. a short-lived atomic system consisting of a positron and an electron bound together.


positronium

/ ˌpɒzɪˈtrəʊnɪəm /

noun

  1. physics a short-lived entity consisting of a positron and an electron bound together. It decays by annihilation to produce two or three photons
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


Discover More

Word History and Origins

Origin of positronium1

First recorded in 1945; positron + -ium; coined by Arthur E. Ruark (1899–1979), U.S. physicist
Discover More

Word History and Origins

Origin of positronium1

C20: from positron + -ium
Discover More

Example Sentences

For more than 60 years, scientists have been able to create positronium.

Advertisement

Advertisement

Advertisement

Advertisement


positron emission tomographyposole