Definitions

1. noun

The nucleus of a deuterium atom, which is an isotope of hydrogen with one proton and one neutron in its nucleus.

“The research team studied the properties of a deuteron in a particle accelerator.”

2. noun

A subatomic particle consisting of one proton and one neutron, occurring naturally in small quantities as deuterium, an isotope of hydrogen.

“The physicist worked on a project involving the interaction of deuterons in nuclear reactions.”