ad·e·noids
 /ˈædəˌnoıdz/  noun   [  plural  ]
  : a mass of tissue in the back of the throat that can become swollen and make it difficult to breathe
  ad·e·noi·dal /ˌædəˈnoıdl̩/  adj  
   an adenoidal voice [=a nasal voice, a voice that sounds odd or unattractive because it seems to be spoken through the nose]