adenoidal vs nasal

adenoidal

adj
  • Of or pertaining to the adenoids. 

  • Sounding as if the speaker has swollen adenoids. 

nasal

adj
  • Of or pertaining to the nose or to the nasion. 

  • Having a sound imparted by means of the nose; and specifically, made by lowering the soft palate, in some cases with closure of the oral passage, the voice thus issuing (wholly or partially) through the nose, as in the consonants m, n, ng. 

  • Sharp, penetrating. 

  • Characterized by resonance in the nasal passage. 

noun
  • The part of a helmet projecting to protect the nose; a nose guard. 

  • A plate, or scale, on the nose of a fish, etc. 

How often have the words adenoidal and nasal occurred in a corpus of books? (source: Google Ngram Viewer )