: 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
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Myersii) is sometimes called foxtail fern due to its soft, surrogate leaves known as cladodes, each of which resembles a bushy, vulpine rear appendage. Joshua Siskin, Oc Register, 21 Feb. 2026 These materials are timeless year-round and easily adapt with seasonal items like pumpkins and mums in the fall, fresh boxwoods and hydrangeas in the spring, and lush ferns in the summer. Lauren Jones, Southern Living, 18 Feb. 2026 Seen as an extension of the green drenching trend—where homeowners layer greens like compact conifers, ferns, evergreen shrubs, and vines to create a lush atmosphere—this garden design also provides a soothing backdrop. Michele Laufik, Martha Stewart, 16 Feb. 2026 In shade, hostas, ferns, and even some of the shade grasses can carry you through the warmer months in style. Paul Cappiello, Louisville Courier Journal, 13 Feb. 2026 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 22 Feb. 2026.

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

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