: the seed of a fleawort (especially Plantago psyllium) that has the property of swelling and becoming gelatinous when moist and is used as a mild laxative
called also psyllium seed
Examples of psyllium in a Sentence
Recent Examples on the Web
The three types of fiber supplements have a main ingredient of psyllium, methylcellulose, or polycarbophil.
—
Amber J. Tresca, Verywell Health, 20 Feb. 2025
On the flip side, supplementing with psyllium has been shown to improve IBS symptoms, by way of its poop-regulating effect.
—Erica Sloan, SELF, 19 Feb. 2025
Studies show that increasing fiber intake (especially soluble fiber) may help with symptoms of IBS-C.4
Sources of soluble fiber include psyllium (available as a supplement), oats, figs, kiwis, and prunes.
—Amber J. Tresca, Verywell Health, 14 Jan. 2025
Soluble fiber supplements, including pectin and psyllium, help bind stools and slow their transit time through the intestine.
—Kashif J. Piracha, Verywell Health, 1 Jan. 2025
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Amber J. Tresca, Verywell Health, 20 Feb. 2025
On the flip side, supplementing with psyllium has been shown to improve IBS symptoms, by way of its poop-regulating effect.
—Erica Sloan, SELF, 19 Feb. 2025
Studies show that increasing fiber intake (especially soluble fiber) may help with symptoms of IBS-C.4
Sources of soluble fiber include psyllium (available as a supplement), oats, figs, kiwis, and prunes.
—Amber J. Tresca, Verywell Health, 14 Jan. 2025
Soluble fiber supplements, including pectin and psyllium, help bind stools and slow their transit time through the intestine.
—Kashif J. Piracha, Verywell Health, 1 Jan. 2025
See All Example Sentences for psyllium
Cite this Entry
“Psyllium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psyllium. Accessed 9 Mar. 2025.
Copy CitationMedical Definition
psyllium
noun
psyl·li·um
ˈsil-ē-əm 
1
: fleawort
2
: psyllium seed
also
: the husks of psyllium seed
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