1) Particle 2) The nucleus of deuterium 
nucleus of deuterium (heavy hydrogen) that consists of one proton and one neutron. Deuterons are formed chiefly by ionizing deuterium (stripping the ... [4 related articles]
atomic nucleus of the hydrogen isotope with mass number 2 NOTE - Hydrogen isotope with mass number 2 is called deuterium.the nucleus of deuterium, which is the hydrogen isotope of mass number 2
<radiobiology> A deuterium ion, nucleus consisting of a proton and a neutron. ... (09 Oct 1997) ... 
(d) Type: Term Pronunciation: dū′tĕr-on Definitions: 1. The nucleus of hydrogen-2, composed of one neutron and one proton; it thus has the one positive charge characteristic of a hydrogen nucleus. Synonyms: deuton, diplon
[n] - the nucleus of deuterium
noun the nucleus of deuterium; consists of one proton and one neutron; used as a bombarding particle in accelerators
Nucleus of an atom of deuterium (heavy hydrogen). It consists of one proton and one neutron, and is used in the bombardment of chemical elements to synthesize other elements
a positively charged particle consisting of a proton and a neutron, equivalent to the nucleus of an atom of deuterium. Cf. triton.