Of or in or relating to the nose WordNet 3.0 & Open English WordNet

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; characterized by resonance in the nasal passage. Wiktionary

Of or pertaining to the nose; nasal. Wiktionary