adder's-tongue
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ad·der's-tongue
(ăd′ərz-tŭng′)n.
1. See adder's-tongue fern.
2. See dogtooth violet.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
adder's-tongue
n
1. (Plants) any of several terrestrial ferns of the genus Ophioglossum, esp O. vulgatum, that grow in the N hemisphere and have a spore-bearing body that sticks out like a spike from the leaf: family Ophioglossaceae
2. (Plants) another name for dogtooth violet
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ad′der's-tongue`
n.
1. any of various ferns of the genus Ophioglossum and family Ophioglossaceae, having a tall fruiting spike resembling a snake's tongue.
2. any of several American dogtooth violets.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.