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an elongated rectangular bone that forms the bridge of the nose (同)nasal_bone, os_nasale
any of various edible tropical marine gastropods of the genus Strombus having a brightly-colored spiral shell with large outer lip
(anatomy) a structure that resembles a shell in shape
proboscis monkeys (同)genus Nasalis

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《名詞の前にのみ用いて》鼻の / 鼻声の / (音声が)鼻音の / (音声で)鼻音;鼻音字([m][n][g])
(ほら貝など,大型の)巻き貝 / (ローマ神話で)トリトン(Triton)のほら貝

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/18 21:39:50」(JST)

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The highest nasal concha or supreme nasal concha is a nasal concha (turbinate) that occurs in some cases. It is shaped like a seashell and found on the posterosuperior part of the lateral nasal wall.^[2] It lies on the medial surface of the labyrinth of ethmoid above the superior nasal concha. This makes the highest of four nasal conchae, and the highest of three on the ethmoid bone. It is often no more than a small, simple crest protruding from the nasal wall.

The space below and the fissure lateral to the concha are known as the supreme nasal meatus.^[2]

It was historically known as Santorini's concha, after Giovanni Domenico Santorini.^[3]

References

^ Terminologia Anatomica TA98
^ ^a ^b Supreme nasal concha. (n.d.) Medical Dictionary for the Health Professions and Nursing. (2012). Retrieved April 16 2015 from [1]
^ Supreme nasal concha. (n.d.) Medical Eponyms. (2012). Retrieved April 16 2015 from [2]