- The definition of an electrically charged atom or group of atoms.
An example of an ion is an atom of hydrogen that has gained an electron.
Origin of ionarbitrary use (by Michael Faraday) of Classical Greek ion, neuter of iōn, present participle of ienai, to go ; from Indo-European base an unverified form wei-, to go, chase after from source Classical Latin via, way
- the act or condition of: retrospection
- the result of: retroaction
Origin of -ion; from French or L: French -ion ; from Classical Latin -io, nominative , (gen. -ionis)
Origin of ionGreek ion, something that goes, neuter present participle of ienai, to go; see ei- in Indo-European roots.
- a. Action or process: completion.b. Result of an action or process: indention.
- State or condition: dehydration.
Origin of -ionMiddle English, from Old French, from Latin -iō, -iōn-, n. suff.
From Ancient Greek ἰόν (ion, “going”), neuter present participle of εἶμι (eimi, “I go”).
From Ancient Greek Ἴων (Iōn).
ion - Computer Definition
An atom or group of atoms that has acquired a positive (+) or negative (
(1) (IDL On the Net) See IDL.
(2) (Ion) An NVIDIA platform that features the NVIDIA GeForce 9400M display adapter in netbooks that use Intel's Atom processors.
(3) An atom with fewer or greater electrons than normal as a result of a chemical reaction in the material. A positive ion, called a "cation" (pronounced "cat-eye-en"), is an atom that has one or more electrons stripped out, which means it has fewer electrons in its electron shells than it has protons in its nucleus. A negative ion, called an "anion" (pronounced "an-eye-en") is an atom that has one or more electrons forcibly added. Batteries Contain Positive and Negative Ions In a battery, there are positive ions on one side and negative ions on the other. When a conductor is placed in between to complete the circuit, the electrons flow from the negative ions to the positive side where they join the positive ions. See ion deposition.