ion

(redirected from positive ion)
Also found in: Thesaurus, Medical, Encyclopedia.

i·on

 (ī′ŏn′, ī′ən)
n.
An atom or a group of atoms that has acquired a net electric charge by gaining or losing one or more electrons.

[Greek ion, something that goes, neuter present participle of ienai, to go; see ei- in Indo-European roots.]

ion

(ˈaɪən; -ɒn)
n
(Atomic Physics) an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons. See also cation, anion
[C19: from Greek, literally: going, from ienai to go]

i•on

(ˈaɪ ən, ˈaɪ ɒn)

n.
1. an atom or atom group electrically charged by the loss or gain of electrons, represented by a plus or a minus sign, as a cation (Na + , Ca + + ) or anion (Cl).
2. one of the electrically charged particles formed in a gas by electric discharge.
[< Greek ión going, neuter present participle of iénai to go; term introduced by Michael Faraday in 1834]
i•on′ic, adj.

-ion

a suffix, appearing in words of Latin origin, denoting action or condition, used to form nouns from stems of adjectives (communion; union) and verbs (legion; opinion; suspicion).
Compare -tion.
[Middle English -ioun < Anglo-French < Latin -iōnem, acc. of -iō suffix forming nouns]

Ion.

Ionic.

i·on

(ī′ən, ī′ŏn′)
An atom or a group of atoms that has an electric charge. Positive ions, or cations, are formed by the loss of electrons; negative ions, or anions, are formed by the gain of electrons. See Note at charge.

ion

1. An electrically charged atom or group of atoms.
2. An electrically charged atom or group of atoms.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ion - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
anion - a negatively charged ion
cation - a positively charged ion
subatomic particle, particle - a body having finite mass and internal structure but negligible dimensions
Translations

ion

[ˈaɪən] Nion m

ion

[ˈaɪən] nion m

ion

nIon nt

ion

[ˈaɪən] nione m

ion

n. ion, átomo o grupo de átomos provistos de carga eléctrica.

ion

n ion or ión m
References in periodicals archive ?
The potassium component is a positive ion and the chloride component is a negative ion.
As shown in Figure 2(c), the intensity of the negative ion at m/z 945.54 and positive ion at m/z 789.48 was maximized at NCE of 15% and 30%, respectively.
In some of the earliest studies by Calcote and his coworkers, the concentration of positive ions in the combustion zone of a laboratory hydrocarbon flame (P = 1 atm) was estimated to be about [10.sup.12] ions/cc using a simplistic mechanical model [5, 6] (although later experiments have shown the ion concentrations to be in the range of 109-1010 ions/cc [7, 11].) Calcote and King [10] sought to explain the positive ion concentration deduced from experimental measurements of current in stoichiometric propane-air flames by using equilibrium assumptions.
Positive ion DART mass spectra were acquired using a DARTSVP[TM] ion source (IonSense, Saugus, MA, USA) interfaced to an LCQ ion trap-MS (Finnigan MAT, USA).
In the ion channel, the beam is subjected to three forces in the radial direction, which are originated from the actions of the transverse electric field [E.sub.i] produced by the positive ion core, the space charge field [E.sup.s.sub.b] of the REB,
Mass spectrum: m/z 229 (100%) molecular ion peak 200 (6%) 146 (98%) 115(20%) and 76 (15%) that characterized to the positive ion or positive ion free radical of Polymer VBP (Yield 83%) m.p.128-130 C.
For the high resolution spectrum reflectron mode positive ion MALDI-MS spectrum was recorded.
Electron Fish attractors are said to create a positive ion field that attracts fish from a distance and a negative electron charge that makes them bite.
Ions of "mixed" oligosaccharides, built up of fucose and galactose residues, were clearly observed in a positive ion mode at m/z 349.10, 495.15, and 511.10.
The latter concept agrees with the present observations, where a positive ion and a dipole are involved in the rate-limiting step of Scheme 2.

Full browser ?