: a short-lived system that consists of a positron and an electron bound together and is suggestive of a hydrogen atom
Examples of positronium in a Sentence
Recent Examples on the WebFor example, in the 1990s physicists thought, essentially, that positronium didn’t live as long as predicted.
Adrian Cho, Science | AAAS, 25 Aug. 2020 That makes positronium an ideal tool with which to look for new physics, Cassidy says.
Adrian Cho, Science | AAAS, 25 Aug. 2020
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