Definition of "cuckooflower" []

• A perennial herb (Cardamine pratensis) in the mustard family, native to the northern temperate regions and having pinnate leaves and pink, purple, or sometimes white flowers. Also called lady's smock. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.