• synonyms


  1. of or relating to the adenoids; adenoid.
  2. having the adenoids enlarged, especially to a degree that interferes with normal breathing.
  3. being characteristically pinched and nasal in tone quality: a high-pitched, adenoidal voice.
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Origin of adenoidal

First recorded in 1915–20; adenoid + -al1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for adenoidal


  1. having the nasal tones or impaired breathing of one with enlarged adenoids
  2. another word for adenoid
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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

Word Origin and History for adenoidal


1852, from adenoids (see adenoid) + -al (1).

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Online Etymology Dictionary, © 2010 Douglas Harper