monounsaturated

adjective

mono·​un·​sat·​u·​rat·​ed ˌmä-nō-ˌən-ˈsa-chə-ˌrā-təd How to pronounce monounsaturated (audio)
: having one double or triple bond between carbon atoms in a hydrocarbon chain
used especially of an oil, fat, or fatty acid
Cholesterol is a monounsaturated molecule located in the cell membrane and it is involved in membrane permeability and fluidity.Vladimiro Cardenia et al.
see also monounsaturated fat compare polyunsaturated
monounsaturate noun
plural monounsaturates
Nutritionists like monounsaturates because they lower harmful LDL but maintain HDL levels. Marilyn Chase

Examples of monounsaturated in a Sentence

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.
Plant breeders had discovered a genetic mutation that produced peanuts with plenty of monounsaturated fat, like the kind found in olive oil. New York Times, 24 July 2025 Olive oil gives you monounsaturated fats, known to reduce LDL (bad) cholesterol. Katie Sullivan Morford, Better Homes & Gardens, 20 July 2025 Avocados boast monounsaturated fats that support heart health and cholesterol levels. Cristina Mutchler, Verywell Health, 10 July 2025 Healthy fats like olive oil, avocado oil, and flaxseed oil contain heart-healthy monounsaturated and polyunsaturated fats that can help reduce inflammation and support overall health. Julie Scott, Verywell Health, 3 July 2025 See All Example Sentences for monounsaturated

Word History

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of monounsaturated was in 1939

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Cite this Entry

“Monounsaturated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monounsaturated. Accessed 7 Aug. 2025.

Kids Definition

monounsaturated

adjective
mono·​un·​sat·​u·​rat·​ed ˌmän-ō-ˌən-ˈsach-ə-ˌrāt-ed How to pronounce monounsaturated (audio)
: containing one double or triple bond per molecule
used especially of an oil, fat, or fatty acid

Medical Definition

monounsaturated

adjective
mono·​un·​sat·​u·​rat·​ed ˌmän-ō-ˌən-ˈsach-ə-ˌrāt-əd How to pronounce monounsaturated (audio)
: having one double or triple bond between carbon atoms in a hydrocarbon chain
used especially of an oil, fat, or fatty acid
Canola and olive oils are rich in monounsaturated fatty acids.
see also monounsaturated fat compare polyunsaturated
monounsaturate noun
… the monounsaturates reduce low density lipoprotein (LDL) cholesterol levels, but do not lower high density lipoprotein (HDL) cholesterol levels. Scott M. Grundy, The Journal of Nutrition
Last Updated: - Updated example sentences
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