eicosapentaenoic acid
noun
ei·co·sa·pen·ta·e·no·ic acid
ˌī-kō-sə-ˌpen-tə-ē-ˈnō-ik- 
: an omega-3 fatty acid C20H30O2 found especially in fish oils
Examples of eicosapentaenoic acid in a Sentence
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How Omega-3s Affect Heart Health Omega-3 fatty acids, specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), help regulate inflammation throughout the body, supporting healthy blood vessel function, an essential component of heart health.
—
Jillian Kubala, Health, 30 Jan. 2026
There are three kinds of omega-3 fats: eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are found in fish and seafood, and alpha-linolenic acid (ALA), which is found in plants.
—Olivia McIntosh, Martha Stewart, 18 Jan. 2026
Low omega-3 levels, specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are associated with a range of medical conditions, including heart attacks, strokes, high blood pressure, insulin resistance, poor cognition, mood disorders and more, studies have shown.
—Melissa Rudy, FOXNews.com, 8 Dec. 2025
The three main omega-3 fatty acids are alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
—Jennifer Lefton, Verywell Health, 23 Oct. 2025
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Jillian Kubala, Health, 30 Jan. 2026
There are three kinds of omega-3 fats: eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are found in fish and seafood, and alpha-linolenic acid (ALA), which is found in plants.
—Olivia McIntosh, Martha Stewart, 18 Jan. 2026
Low omega-3 levels, specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are associated with a range of medical conditions, including heart attacks, strokes, high blood pressure, insulin resistance, poor cognition, mood disorders and more, studies have shown.
—Melissa Rudy, FOXNews.com, 8 Dec. 2025
The three main omega-3 fatty acids are alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
—Jennifer Lefton, Verywell Health, 23 Oct. 2025
Cite this Entry
“Eicosapentaenoic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eicosapentaenoic%20acid. Accessed 17 Feb. 2026.
Copy CitationMedical Definition
eicosapentaenoic acid
noun
ei·co·sa·pen·ta·e·no·ic acid
ˌī-kō-sə-ˌpen-tə-ē-ˌnō-ik-, -i-ˌnō-ik-
: an omega-3 fatty acid C20H30O2 found especially in the oil of cold-water fish (such as salmon, mackerel, and herring)
—abbreviation EPA
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