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positronium
[ poz-i-troh-nee-uhm ]
/ ˌpɒz ɪˈtroʊ ni əm /
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noun Physics.
a short-lived atomic system consisting of a positron and an electron bound together.
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Words nearby positronium
positive vetting, positivism, positivity, positron, positron emission tomography, positronium, posole, posology, poss., posse, posse comitatus
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use positronium in a sentence
For more than 60 years, scientists have been able to create positronium.
The exotic ‘atom’ positronium surprises scientists|Emily Conover|September 23, 2020|Science News For Students
British Dictionary definitions for positronium
positronium
/ (ˌpɒzɪˈtrəʊnɪəm) /
noun
physics a short-lived entity consisting of a positron and an electron bound together. It decays by annihilation to produce two or three photons
Word Origin for positronium
C20: from positron + -ium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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