A point on the skull corresponding to the middle of the nasofrontal suture. SYN: nasal point. [L. nasus, nose]
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na·si·on 'nā-zē-.än n the middle point of the nasofrontal suture
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n.
the point on the bridge of the nose at the centre of the suture between the nasal and frontal bones.
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na·si·on (naґze-on) [L. nasus nose] [TA] a cephalometric landmark located where the internasal and nasofrontal sutures meet; it corresponds roughly to the depression at the root of the nose just inferior to the level of the eyebrows.
Medical dictionary. 2011.