ion

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ion

 [i´on]
an atom or group of atoms having a positive (cation) or negative (anion) electric charge by virtue of having gained or lost an electron; substances forming ions are called electrolytes. adj., adj ion´ic.
dipolar ion an ion that has both positive and negative regions of charge.
hydrogen ion the positively charged hydrogen atom (H+), which is the positive ion of all acids. See also hydrogen ion concentration.
hydroxyl ion the negatively charged group, OH, present to excess in alkaline solutions.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

i·on

(ī'on),
An atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Ions charged with negative electricity (anions) travel toward a positive pole (anode); those charged with positive electricity (cations) travel toward a negative pole (cathode). Ions may exist in solid, liquid, or gaseous environments, although those in liquid (electrolytes) are more common and familiar.
[G. iōn, going]
Farlex Partner Medical Dictionary © Farlex 2012

i·on

(ī'on)
An atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Ions charged with negative electricity (anions) travel toward a positive pole (anode); those charged with positive electricity (cations) travel toward a negative pole (cathode). Ions may exist in solid, liquid, or gaseous environments, although those in liquid (electrolytes) are more common and familiar.
[G. iōn, going]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ion

An electrically charged atom, group of atoms, or molecule. A positive ion is an atom that has lost an electron; a negatively charged ion is one that has gained an electron. See also IONIZATION.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

ion

an atom that carries a charge due to loss or gain of electrons.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Ion

An atom or group of atoms that acquires an electrical charge by the gain or loss of electrons.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

ion

(ī'on)
An atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Ions charged with negative electricity (anions) travel toward a positive pole (anode); those charged with positive electricity (cations) travel toward a negative pole (cathode). Ions may exist in solid, liquid, or gaseous environments, although those in liquid (electrolytes) are more common and familiar.
[G. iōn, going]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Dispersing the same Ti[O.sub.2] nanoparticles in these, enriched with ions, liquid crystals, the ion trapping regime was achieved [34].
The ion trapping regime, corresponding to the effects of nanoparticles on the concentration of ions [n.sub.2], is shown in Figure 3.
If nanodopants are 100% pure, the ion trapping regime is the only possible outcome of their dispersion in liquid crystals.
Glushchenko, "Nano-objects and ions in liquid crystals: Ion trapping effect and related phenomena," Crystals, vol.