I. na ‧ sal 1 /ˈneɪz ə l/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Medieval Latin ; Origin: nasalis , from Latin nasus 'nose' ]
1 . [only before noun] related to the nose:
the nasal passage
2 . a sound or voice that is nasal comes mainly through your nose:
He spoke in a high nasal voice.
3 . [only before noun] technical a nasal ↑ consonant or vowel such as /n/ or /m/ is one that is produced completely or partly through your nose
—nasally adverb
II. nasal 2 BrE AmE noun [countable] technical
a particular speech sound such as /m/, /n/, or /ŋ/ that is made through your nose