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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - An elementary particle with negative charge that is emitted from an atom or molecule by an incident elementary particle that is its own antiparticle

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Usage examples (32)
  • Castleman and his team -- which includes Samuel Peppernick, a former Penn State graduate student who now is a postdoctoral researcher at the Pacific Northwest National...
  • I started to build up a microwave laboratory to probe unstable molecules and Michael Lappert encouraged me to use his photoelectron spectrometer to carry out work...
  • “Well, in some sense we should have expected, if the recent models are correct, to see them on the dark side where the photoelectron abundance is low,” Porco said of the...
  • The front of the photoelectron current runs along the anode surface with faster-than-light superluminal speed and provides the in-phase summation of radiation fluxes...
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.