horse·​tail | \ ˈhȯrs-ˌtāl How to pronounce horsetail (audio) \

Definition of horsetail

: any of a genus (Equisetum of the order Equisetales) of lower tracheophytes comprising perennial, spore-producing plants that spread by creeping rhizomes and have leaves reduced to nodal sheaths on the hollow jointed ribbed shoots

Illustration of horsetail

Illustration of horsetail

horsetail: 1 vegetative plant, 2 fertile plant

Examples of horsetail in a Sentence

Recent Examples on the Web Red clover adds oomph, oatstraw detangles, and horsetail prevents breakage. Grooming Playbook, The Salt Lake Tribune, 9 May 2022 Its all-natural formula contains nutrient-rich aloe, revitalizing horsetail, and restorative chamomile. Grooming Playbook, The Salt Lake Tribune, 7 Apr. 2022 Blackberry, tree-of-heaven, invasive knotweeds, garlic mustard, lesser celandine, Italian arum and horsetail are some examples that are difficult to control. oregonlive, 3 June 2021 This iconic horsetail-type waterfall has formed within the midst of Hakaui valley's jagged basalt peaks. Stephanie Takyi, CNN, 2 June 2021 It is enhanced with horsetail extract to improve the circulation of key nutrients found inside this 8 oz refill pouch including soothing aloe vera leaf juice, shine-enhancing Jojoba Seed Oil and moisturizing Sunflower Seed Oil. Jennifer Ford, Forbes, 21 Apr. 2021 But this blue-blazed trail, set within an 85-acre municipal park, offers a sweet reward for those who discover it: a 45-foot-tall horsetail waterfall, Notch Brook Cascade, set amid a hemlock grove., 23 Apr. 2021 Magick-Glow Worthy Ultra-Rich Moisturizer harnesses the power of peptides, Hyaluronic acid and skin-loving Jojoba oil along with unique botanical actives like green tea and horsetail extract to bring a golden-hour glow to all skin tones 24/7. Joseph Deacetis, Forbes, 28 Feb. 2021 Mounds of horsetail plants for regulating the influence of moon forces on the vineyard’s water? Chris Macias,, 17 Dec. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'horsetail.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of horsetail

15th century, in the meaning defined above

Learn More About horsetail

Time Traveler for horsetail

Time Traveler

The first known use of horsetail was in the 15th century

See more words from the same century

Dictionary Entries Near horsetail

horse syphilis


horsetail agaric

See More Nearby Entries 

Statistics for horsetail

Last Updated

12 May 2022

Cite this Entry

“Horsetail.” Dictionary, Merriam-Webster, Accessed 18 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for horsetail


horse·​tail | \ ˈhȯrs-ˌtāl How to pronounce horsetail (audio) \

Kids Definition of horsetail

: a plant that produces spores and has small leaves resembling scales

More from Merriam-Webster on horsetail Encyclopedia article about horsetail


Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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