: 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.
Surround yourself with ferns of all shapes and sizes, from towering ferns to maidenhairs and seasonal poinsettias. Caroline Ritzie, Cincinnati Enquirer, 5 Nov. 2025 In the downstairs bath, a dark wallpaper with leaves and ferns complement the black and white tile. Lennie Omalza, Louisville Courier Journal, 30 Oct. 2025 The Fern Grove collection will elevate your scentscape with a calming blend of fern, oakmoss, fig, watercress, cedar, vetiver, and sandalwood. Audrey Lee, Architectural Digest, 29 Oct. 2025 Redwoods Coast redwoods thrive along foggy shorelines, creating forests rich with ferns, lichens, moss, and plenty of mushrooms in the fall. AFAR Media, 28 Oct. 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 7 Nov. 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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