: a polysaccharide (such as glycogen or cellulose) that is a polymer of glucose
Examples of glucan in a Sentence
Recent Examples on the Web
Could Lower Risk of Cancer Preliminary research suggests that glucan, a complex carbohydrate found in black beans, may inhibit the growth of certain cancer cells and could be useful as an adjunct cancer treatment.
—
Nancy Lebrun, Verywell Health, 7 Feb. 2026
Fungi fossils preserved in the chert contained compounds from the breakdown of chitin and glucan, key structural molecules in fungi.
—Katie Hunt, CNN Money, 5 Feb. 2026
As glutathione, niacinamide, and vitamin C help brighten, ingredients like cica and beta glucan work to calm and hydrate, making this serum a well-rounded formula for any skin-care routine.
—Emily Orofino, Vogue, 19 Nov. 2025
To soothe, hydrate, and support the skin barrier, this nourishing formula has colloidal oatmeal and beta glucan.
—Lisa Desantis, Glamour, 6 Aug. 2025
The food can also help prevent type 2 diabetes and lower blood sugar and cholesterol levels due to the presence of beta glucan, a type of soluble dietary fiber.
—Angelica Stabile, Fox News, 13 Jan. 2025
The formula also contains beta glucan, an antioxidant-rich humectant to encourage skin to retain moisture.
—Bea McMonagle, Forbes, 30 Dec. 2024
There's no actual milk in here — just ceramides (fatty acids that help the skin retain moisture), magnesium (to reduce skin inflammation), and beta glucan (a hydrator akin to hyaluronic acid).
—Megan Decker, refinery29.com, 25 Jan. 2024
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.
Nancy Lebrun, Verywell Health, 7 Feb. 2026
Fungi fossils preserved in the chert contained compounds from the breakdown of chitin and glucan, key structural molecules in fungi.
—Katie Hunt, CNN Money, 5 Feb. 2026
As glutathione, niacinamide, and vitamin C help brighten, ingredients like cica and beta glucan work to calm and hydrate, making this serum a well-rounded formula for any skin-care routine.
—Emily Orofino, Vogue, 19 Nov. 2025
To soothe, hydrate, and support the skin barrier, this nourishing formula has colloidal oatmeal and beta glucan.
—Lisa Desantis, Glamour, 6 Aug. 2025
The food can also help prevent type 2 diabetes and lower blood sugar and cholesterol levels due to the presence of beta glucan, a type of soluble dietary fiber.
—Angelica Stabile, Fox News, 13 Jan. 2025
The formula also contains beta glucan, an antioxidant-rich humectant to encourage skin to retain moisture.
—Bea McMonagle, Forbes, 30 Dec. 2024
There's no actual milk in here — just ceramides (fatty acids that help the skin retain moisture), magnesium (to reduce skin inflammation), and beta glucan (a hydrator akin to hyaluronic acid).
—Megan Decker, refinery29.com, 25 Jan. 2024
Cite this Entry
“Glucan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glucan. Accessed 18 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
