n.
Any of numerous flowerless, seedless vascular plants having roots, stems, and fronds and reproducing by spores.
[Middle English, from Old English fearn.]
ferny fern'y adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.