ˈd(y)üd.əˌrän noun
also deu·ton ˈd(y)üˌtän
( -s )
Etymology: deuteron from deuter ium + -on; deuton from deut erium + -on
: the nucleus of the deuterium atom that consists of one proton and one neutron and is used as a projectile in nuclear bombardments (as with a cyclotron) — symbol d