[ ad-erz-mouth ]

noun,plural ad·der's-mouths [ad-erz-mouthz, -mouths]. /ˈæd ərzˌmaʊðz, -ˌmaʊθs/.
  1. any of several North American, terrestrial orchids of the genus Malaxis, having tiny white or greenish flowers.

Origin of adder's-mouth

An Americanism dating back to 1830–40

Words Nearby adder's-mouth Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for adder's-mouth


  1. any of various orchids of the genus Malaxis that occur in all parts of the world except Australia and New Zealand and have small usually greenish flowers: See also bog orchid

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