Dictionary.com
definitions
  • synonyms

adder's-tongue

[ad-erz-tuhng]
noun
  1. a fern of the genus Ophioglossum, having one or sometimes two sterile leaves and a fruiting spike.
  2. any of several American dogtooth violets.
Show More
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for adder's-tongue

adder's-tongue

noun
  1. 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. another name for dogtooth violet
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012