ion channel
noun
: a cell membrane channel that is selectively permeable to certain ions (as of calcium or sodium)
Examples of ion channel in a Sentence
Recent Examples on the Web
But in the decades since the theory's origin, researchers have come to understand that pain perception is far more complex, potentially involving various types of cells in the central nervous system, immune cell activation, ion channel alterations, epigenetics, and chemical mediators.
—
Beth Mole, Ars Technica, 21 May 2024
Never mind that scientists have discovered hundreds of ion channel proteins.
—Douglas Fox, Scientific American, 1 Apr. 2018
The Sydney Funnel Web Spider Bite Sydney Funnel Web Spider Bite Sydney funnel web spider venom contains a compound known as atracotoxin, a highly toxic ion channel inhibitor.
—Tim MacWelch, Outdoor Life, 3 May 2023
Nobody should be starting to eat ion channel blockers.
—IEEE Spectrum, 23 May 2023
See all Example Sentences for ion channel 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Beth Mole, Ars Technica, 21 May 2024
Never mind that scientists have discovered hundreds of ion channel proteins.
—Douglas Fox, Scientific American, 1 Apr. 2018
The Sydney Funnel Web Spider Bite Sydney Funnel Web Spider Bite Sydney funnel web spider venom contains a compound known as atracotoxin, a highly toxic ion channel inhibitor.
—Tim MacWelch, Outdoor Life, 3 May 2023
Nobody should be starting to eat ion channel blockers.
—IEEE Spectrum, 23 May 2023
See all Example Sentences for ion channel
Dictionary Entries Near ion channel
Cite this Entry
“Ion channel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ion%20channel. Accessed 22 Nov. 2024.
Copy CitationMedical Definition
ion channel
noun
: a cell membrane channel that is selectively permeable to certain ions (such as of calcium or sodium)
Researchers now know that not only do all cells, including nerve cells, have ion channels through which substances such as sodium and calcium move in and out, but that particular subtypes of sodium channels govern the transmission of pain.—Judy Foreman, The Los Angeles Times
Judy Foreman, The Los Angeles TimesLove words? Need even more definitions?
Merriam-Webster unabridged
Share