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Definition of Frontal sinus
1. Noun. One of a pair of cavities in the frontal bone.
Generic synonyms: Sinus
Definition of Frontal sinus
1. Noun. (anatomy) A paranasal sinus situated behind the superciliary arches. ¹
¹ Source: wiktionary.com
Medical Definition of Frontal sinus
1. One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the frontal bone. (12 Dec 1998)
Lexicographical Neighbors of Frontal Sinus
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