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sword fern

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sword fern

–noun
any fern of the genus Nephrolepis, esp. N. exaltata, characterized by sword-shaped, pinnate fronds, a common houseplant.

Origin:
1820–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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sword fern  
n.  Any of various ferns of the genus Nephrolepis, including the Boston fern, having bipinnately compound fronds and sori at the vein tips.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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