TOP

Definition of ion noun from the Oxford Advanced American Dictionary

 

ion

 noun
noun
NAmE//ˈaɪən//
 
, NAmE//ˈaɪɑn//
 
(physics or chemistry)
 
jump to other results
an atom or a molecule with a positive or negative electric charge caused by its losing or gaining one or more electrons
See ion in the Oxford Advanced Learner's Dictionary
Check pronunciation: ion

Other results

All matches

Nearby words