isoelectric
adjective
iso·elec·tric
ˌī-sō-i-ˈlek-trik 
1
: having or representing zero difference of electric potential
2
: being the pH at which the electrolyte will not migrate in an electric field
the isoelectric point of a protein
Examples of isoelectric in a Sentence
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When the brain is starved of blood flow (ischemia) and oxygen (anoxia), the patient faints in a fraction of a minute and his or her electroencephalogram, or EEG, becomes isoelectric—in other words, flat.
—
Christof Koch, Scientific American, 19 May 2020
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Christof Koch, Scientific American, 19 May 2020
Cite this Entry
“Isoelectric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoelectric. Accessed 9 Sep. 2025.
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isoelectric
adjective
iso·elec·tric
ˌī-sō-i-ˈlek-trik
1
: relating to or being a flat line on an electroencephalogram indicating a lack of electrical brain activity : demonstrating an absence of brain waves
An isoelectric EEG may be purposely induced by the administration of a barbiturate or propofol to protect the brain during neurosurgery or to stop generalized seizures.—Emery N. Brown et al., The New England Journal of Medicine
Emery N. Brown et al., The New England Journal of Medicine2
: relating to or being the isoelectric point of a molecule or surface
The cytokeratin polypeptides range in apparent molecular weights from 40,000 to 68,000 and isoelectric pH values from 5 to 8 …—Brian Anderton, Nature
Brian Anderton, NatureLove words? Need even more definitions?
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