hydrogen ion

English Thesaurus

1. a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus (noun.object)

hypernym	:	cation,
definition	:	a positively charged ion (noun.object)

hypernym	:	proton,
definition	:	a stable particle with positive charge equal to the negative charge of an electron (noun.object)

part meronym	:	hydrogen atom,
definition	:	an atom of hydrogen (noun.substance)