[doo-tuh-ron, dyoo-]
noun Physics.
a positively charged particle consisting of a proton and a neutron, equivalent to the nucleus of an atom of deuterium.
Compare triton.

1933; < Greek deúter(os) second + -on1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
deuteron (ˈdjuːtəˌrɒn)
the nucleus of a deuterium atom, consisting of one proton and one neutron

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
deuteron   (d'tə-rŏn')  Pronunciation Key 
The nucleus of a deuterium atom, consisting of a proton and a neutron. It is regarded as a subatomic particle with unit positive charge.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Hadron therapy includes neutrons and protons, which are generated using proton or deuteron accelerators.
The first experiment was conducted using a deuteron beam on a beryllium target.
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