1
: an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons
2
: a charged subatomic particle (such as a free electron)
Ionic
1
a
: act or process
validation
b
: result of an act or process
regulation
2
: state or condition
hydration
Examples of ion in a Sentence
Recent Examples on the Web
Aldo Svaldi, Mercury News, 19 May 2026
Timelines for the deployment of solid-state and sodium-ion batteries, seen as the next step in cutting-edge technology, have been delayed, however.
—Prashant Rao, semafor.com, 19 May 2026
Today teams around the world are developing ever bigger quantum processors using qubits made from ions, neutral atoms, superconducting loops, and more.
—Zeeya Merali, Scientific American, 19 May 2026
Once trapped, the ions are reduced to a ground state through lasers, similar to what freezing them at absolute zero achieves.
—Aldo Svaldi, Denver Post, 18 May 2026
See All Example Sentences for ion
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Noun
Once trapped, the ions are reduced to a ground state through lasers, similar to what freezing them at absolute zero achieves.
—Aldo Svaldi, Mercury News, 19 May 2026
Timelines for the deployment of solid-state and sodium-ion batteries, seen as the next step in cutting-edge technology, have been delayed, however.
—Prashant Rao, semafor.com, 19 May 2026
Today teams around the world are developing ever bigger quantum processors using qubits made from ions, neutral atoms, superconducting loops, and more.
—Zeeya Merali, Scientific American, 19 May 2026
Once trapped, the ions are reduced to a ground state through lasers, similar to what freezing them at absolute zero achieves.
—Aldo Svaldi, Denver Post, 18 May 2026
See All Example Sentences for ion
Cite this Entry
“Ion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ion. Accessed 20 May. 2026.
Copy CitationKids Definition
ion
1 of 2 noun
ˈī-ən 
ˈī-ˌän
: an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons
-ion
2 of 2 noun suffix1
a
: act or process
validation
b
: result of an act or process
regulation
2
: state or condition
hydration
Etymology
Noun suffix
derived from Latin -ion (suffix) "act or process"
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