acidity

noun

acid·​i·​ty ə-ˈsi-də-tē How to pronounce acidity (audio)
a-
plural acidities
Synonyms of aciditynext
1
: the quality, state, or degree of being acid
2
: the state of being excessively acid

Synonyms of acidity

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Examples of acidity in a Sentence

detected a certain acidity in the way he responded the acidity of their relationship was well known to their mutual acquaintances
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.
The ribs pick up smoke during the first part of the cook, sweetness while they’re wrapped in butcher paper and heat and acidity only toward the end, when the sauce is brushed on twice to create a sticky glaze. — Monti Carlo, AJC.com, 5 Sep. 2026 Poetry and beauty color their appreciation of the wine’s complex balance, its bright fruit notes, vibrant acidity and earthy mineral undertones. — David Rooney, HollywoodReporter, 4 Sep. 2026 Calcium carbonate relies on the acidity of stomach acid for absorption. — Jennifer Lefton, Verywell Health, 3 Sep. 2026 Sumac is my go-to for adding acidity to dishes without using liquid ingredients like vinegar or fresh lemon juice. — Alana Al-Hatlani, Southern Living, 3 Sep. 2026 See All Example Sentences for acidity

Word History

Etymology

borrowed from French & Late Latin; French acidité, going back to Middle French, borrowed from Late Latin aciditāt-, aciditās, from Latin acidus "sour, acid entry 2" + -itāt-, -itās -ity

First Known Use

1615, in the meaning defined at sense 1

Time Traveler
The first known use of acidity was in 1615

Rhymes for acidity

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Browse Nearby Words

acid indigestion
acidity
acidity coefficient
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Cite this Entry

“Acidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acidity. Accessed 7 Sep. 2026.

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Kids Definition

acidity

noun
acid·​i·​ty ə-ˈsid-ət-ē How to pronounce acidity (audio)
a-
plural acidities
1
: the quality, state, or degree of being acid
2
: the state of being extremely acid

Medical Definition

acidity

noun
acid·​i·​ty ə-ˈsid-ət-ē, a- How to pronounce acidity (audio)
plural acidities
1
: the quality, state, or degree of being sour or chemically acid
the acidity of lemon juice
2
: the quality or state of being excessively or abnormally acid : hyperacidity

More from Merriam-Webster on acidity

Britannica.com: Encyclopedia article about acidity

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