1
: a nonmetallic electric conductor in which current is carried by the movement of ions
2
a
: a substance that when dissolved in a suitable solvent or when fused becomes an ionic conductor
b
: any of the ions (as of sodium or calcium) that in biological fluid regulate or affect most metabolic processes (such as the flow of nutrients into and waste products out of cells)

Examples of electrolyte in a Sentence

The drink will replenish your electrolytes.
Recent Examples on the Web
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.
These help replace fluids and electrolytes lost through diarrhea or vomiting. Kelly McGreal, FOXNews.com, 19 July 2026 Oral rehydration solutions, which are sold in most pharmacies, and liquids that contain salts and sugars — like broths, apple juice and electrolyte solutions like Gatorade — are the best bet for keeping your fluids up. Elise Haulund, CNN Money, 18 July 2026 His attorney said the white substance was a salt mixture that the men used as electrolytes to stay hydrated while doing manual labor in the grueling Texas heat. Safiyah Riddle, Los Angeles Times, 18 July 2026 Their simulations focused on where the protective layer intersects the electrolyte, the lithium metal anode, and the cathode materials. Mrigakshi Dixit, Interesting Engineering, 17 July 2026 See All Example Sentences for electrolyte

Word History

First Known Use

1834, in the meaning defined at sense 1

Time Traveler
The first known use of electrolyte was in 1834

Browse Nearby Words

Cite this Entry

“Electrolyte.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electrolyte. Accessed 31 Jul. 2026.

Kids Definition

electrolyte

noun
1
: a conductor in which electric current is carried by the movement of ions that are not metallic
2
a
: a substance that when dissolved in a suitable solvent or when melted becomes an ionic conductor
b
: an ion (as of sodium) that regulates or affects metabolic processes of the body (as the movement of waste products out of a cell)

Medical Definition

electrolyte

noun
1
: a nonmetallic electric conductor in which current is carried by the movement of ions
2
a
: a substance (as an acid, base, or salt) that when dissolved in a suitable solvent (as water) or when fused becomes an ionic conductor
b
: any of the ions (as of sodium, potassium, calcium, or bicarbonate) that in a biological fluid regulate or affect most metabolic processes (as the flow of nutrients into and waste products out of cells)
used especially in biology and biochemistry

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