ion
Chemistry term for an atom or molecule with a net electric charge. Used in scientific and everyday contexts (e.g., air purifiers, hair dryers).
from German Ion
Salt turns into ions when dissolved in water.
This air purifier generates negative ions.
We learned about ionic bonding in chemistry class.
This hair dryer generates negative ions.
ionicity; ionic character · ionic
counter ion
anion; negative ion
Loanword from German 'Ion', itself from Ancient Greek 'ἰόν' (going), neuter present participle of 'εἶμι' (I go).