: any of a division (Polypodiophyta) or class (Polypodiopsida) of flowerless spore-producing vascular plants having alternating sporophyte and gametophyte generations
especially : any of an order (Polypodiales) of homosporous plants possessing roots, stems, and leaflike fronds compare seed fern
fernlike adjective
ferny adjective

Examples of fern 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.
The ground cover was thick with ferns, moss, felled trees, and other low-lying plants. Greg Sullivan, AFAR Media, 15 Sep. 2025 Along the narrow, two‑lane mountain road were slopes on either side, planted with rice or else wild with tropical flora and giant ferns. Tereza Shkurtaj, PEOPLE, 13 Sep. 2025 The area is also home to an astounding collection of native plants and flowers, including ferns, bee balm, native azaleas, galax, dwarf iris, and many more. Stacey Leasca, Travel + Leisure, 8 Sep. 2025 The following day, one of the rangers hiked back up and found a sling bag with the keys under a log in tall ferns. Michael Dorgan, FOXNews.com, 8 Sep. 2025 See All Example Sentences for fern

Word History

Etymology

Middle English, from Old English fearn; akin to Old High German farn fern, Sanskrit parṇa wing, leaf

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of fern was before the 12th century

Browse Nearby Words

Cite this Entry

“Fern.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fern. Accessed 20 Sep. 2025.

Kids Definition

fern

noun
: any of an order of vascular plants resembling seed plants in having root, stem, and leaflike fronds but reproducing by spores instead of by flowers and seeds
fernlike adjective
ferny adjective

More from Merriam-Webster on fern

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