名詞 nasal:

1. a consonant produced through the nose with the mouth closed
   同義詞：nasal consonant
2. an elongated rectangular bone that forms the bridge of the nose
   同義詞：nasal bone, os nasale

形容詞 nasal:

1. of or in or relating to the nose
   同義詞：rhinal
2. sounding as if the nose were pinched
   同義詞：adenoidal, pinched

1. Every person has two nasal orifices.
   一個人有兩個鼻孔。
2. A strongly nasal tone of voice, especially as a peculiarity of certain regional dialects.
   鼻音，土音說話時的濃厚的鼻音，尤指某些地方方言的特有的口音
3. A nasal part or bone, forming part of the bridge of the nose.
   鼻骨鼻的一部分或骨頭，形成鼻梁的一部分
4. He talked to me with a nasal voice.
   他帶著鼻音和我說話。
5. He sprayed some nasal spray into the nose to make breathing easier.
   他往鼻子里噴了些鼻霧噴劑，讓呼吸暢通些。

na.sal

adj.（形容詞）
Of, in, or relating to the nose.
鼻的：鼻的，屬于或關(guān)于鼻的
Linguistics Articulated by lowering the soft palate so that air resonates in the nasal cavities and passes out the nose, as in the pronunciation of the nasal consonants (m), (n), and (ng) or the nasalized vowel of Frenchbon.
【語言學(xué)】 鼻音的：由軟腭下降發(fā)言以致氣流在口道某處阻塞因而使鼻道張開的，如鼻輔音(m)(n)和(ng)或法語中的鼻元音bon 的發(fā)音
Characterized by or resembling a resonant sound produced through the nose:
鼻音的：具有或類似于經(jīng)由鼻子發(fā)出的共鳴音的：
例句：
a nasal whine.
用鼻音哀號

n.（名詞）
Linguistics A nasal consonant.
【語言學(xué)】 鼻輔音
A nasal part or bone, forming part of the bridge of the nose.
鼻骨：鼻的一部分或骨頭，形成鼻梁的一部分
The nosepiece of a helmet.
護(hù)鼻：頭盔上用以保護(hù)鼻子的部分

來源：
Possibly from Middle English nasale
可能源自 中古英語 nasale
from Medieval Latin n3s3lis
源自 中世紀(jì)拉丁語 n3s3lis
from Latin n3sus [nose] * see nas-
源自 拉丁語 n3sus [鼻子] *參見 nas-

【引伸】
nasal.ity
na.sally
adv.（副詞）