deu·ter·on 
(dtə-rŏn′, dy-)
(dtə-rŏn′, dy-)n. Abbr. d
The nucleus of a deuterium isotope of hydrogen, composed of a proton and a neutron, regarded as a subatomic particle with unit positive charge.
[DEUTER(IUM) + -ON1.]
- proglottic
- proglottid
- proglottidean
- proglottis
- prognathic
- prognathism
- prognathous
- prognosis
- prognostic
- prognosticate
- prognostication
- prognosticative
- prognosticator
- prograde
- program
- program director
- programed
- programer
- programing
- programmability
- programmable
- programmatic
- programmatically
- programme
- programmed