1
: a salt or ester of sulfuric acid
2
: a divalent group or anion SO4 characteristic of sulfuric acid and the sulfates
Examples of sulfate in a Sentence
Recent Examples on the Web
Scott Travers, Forbes, 8 Dec. 2024
Made with a clean formula—meaning no aluminum, formaldehyde, phthalates, gluten, mineral oils, parabens, silicones, SLSs, sulfates, toluene or soap—this is a genderless scent anyone on your list will love.
—Kayla Greaves, Essence, 23 Nov. 2024
Randy Zellers, Field & Stream, 10 Apr. 2023
Energizing Scalp Serum for its gentle, sulfate-free formula.
—Rebecca Deczynski, Health, 30 Jan. 2023
See all Example Sentences for sulfate 
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Noun
The blanket of sulfate aerosols that dropped global temperatures was about to unleash an ecologically unbelievable year around the world.
—Scott Travers, Forbes, 8 Dec. 2024
Made with a clean formula—meaning no aluminum, formaldehyde, phthalates, gluten, mineral oils, parabens, silicones, SLSs, sulfates, toluene or soap—this is a genderless scent anyone on your list will love.
—Kayla Greaves, Essence, 23 Nov. 2024
Verb
When the battery overheats, the water in the sulfuric acid solution within its case will boil and escape, leaving dry lead plates behind, which sulfate and lose their capacity.
—Randy Zellers, Field & Stream, 10 Apr. 2023
Energizing Scalp Serum for its gentle, sulfate-free formula.
—Rebecca Deczynski, Health, 30 Jan. 2023
See all Example Sentences for sulfate
Dictionary Entries Near sulfate
Cite this Entry
“Sulfate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sulfate. Accessed 21 Dec. 2024.
Copy CitationMedical Definition
sulfate
2 of 2 transitive verb
variants
or chiefly British sulphate
sulfated or chiefly British sulphated; sulfating or chiefly British sulphating
: to treat or combine with sulfuric acid or a sulfate
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