: 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.
Suspend trailing pothos or ferns from hooks that clamp onto an overhang, or use tension rods to create a floating curtain of greenery. Lauren Jarvis-Gibson, Charlotte Observer, 22 Apr. 2026 This easygoing collection of tropical-punch colors combines pale caladiums with rosy centers, purple-and-green Magilla perilla, the dark purple leaves of calathea 'Dottie', and a few ferns (including a feathery ghost fern). Midwest Living, 22 Apr. 2026 Its fern-like foliage and feathery blooms add texture to any garden and contrast nicely with the hosta's smooth, mounding appearance. Cori Sears, The Spruce, 21 Apr. 2026 The Olson/Binder garden in Poway, which features a collection of award-winning Staghorn ferns, an orchid greenhouse, a variety of fruit trees and a gazebo from which visitors can enjoy the view. Elizabeth Marie Himchak, San Diego Union-Tribune, 21 Apr. 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 24 Apr. 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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