Definition of Ion

1. Noun. A particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons.

Specialized synonyms: Anion, Cation
Generic synonyms: Particle, Subatomic Particle
Derivative terms: Ionate, Ionic, Ionise, Ionize

Definition of Ion

1. n. One of the elements which appear at the respective poles when a body is subjected to electro-chemical decomposition. Cf. Anion, Cation.

2. n. One of the electrified particles into which, according to the electrolytic dissociation theory, the molecules of electrolytes are divided by water and other solvents. An ion consists of one or more atoms and carries a unit charge of electricity, 3.4 x 10-10 electrostatic units, or a multiple of this. Those which are positively electrified (hydrogen and the metals) are called cations; negative ions (hydroxyl and acidic atoms or groups) are called anions.

Definition of Ion

1. an electrically charged atom [n -S]

Medical Definition of Ion

1. Atomic particle, atom or chemical radical bearing an electric charge, either negative or positive. (16 Dec 1997)

Lexicographical Neighbors of Ion

iodoxamate meglumine
ioduret
ioduret
iodurets
ioduria
iodyrite
iodyrite
iodyrites
ioglycamic acid
iohexol
iolite
iolite
iolites
iometer
ion (current term)
ion (current term)
ion-selective electrodes
ionate
Ionesco
Ionia
Ionian
Ionian order
Ionian Sea
ionic
Ionic
ionicities
ionicity
ionics
ionic bond
ionic charge

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