ellagic acid

noun

el·​lag·​ic acid ə-ˈla-jik- How to pronounce ellagic acid (audio)
e-
: a crystalline phenolic compound C14H6O8 with two lactone groupings that is obtained especially from oak galls and some tannins and is used medicinally as a hemostatic

Examples of ellagic acid 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.
Some brands may have added blueberry and cranberry extracts, as well as ellagic acid (another antioxidant phytochemical found in pomegranates and other fruits and vegetables). Rebeca Schiller, Verywell Health, 29 Jan. 2026 Blackberries Blackberries are rich in antioxidant compounds, including vitamin C, vitamin E, anthocyanins, ellagic acid, quercetin, and terpenoids. Brian Mastroianni, Health, 5 Dec. 2025 Just a pump or two floods strands with nutrients such as beta-carotene and ellagic acid, resulting in noticeably softer and frizz-free hair that leaves behind a sleek finish that lasts throughout the day. Jailynn Taylor, Allure, 1 Sep. 2025 Blackberries are concentrated sources of the phytochemical ellagic acid, which acts as a powerful antioxidant. Cathy Thomas, Oc Register, 28 May 2025

Word History

Etymology

French ellagique, from ellag, anagram of galle gall

First Known Use

1810, in the meaning defined above

Time Traveler
The first known use of ellagic acid was in 1810

Browse Nearby Words

Cite this Entry

“Ellagic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ellagic%20acid. Accessed 13 Feb. 2026.

Medical Definition

ellagic acid

noun
el·​lag·​ic acid ə-ˌlaj-ik-, e- How to pronounce ellagic acid (audio)
: a crystalline phenolic compound C14H6O8 with two lactone groups that is obtained especially from oak galls and some tannins and has hemostatic properties
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster