Frontal sinus

What is Frontal sinus?

Frontal sinus definition and meaning on Dictionary terms:
adjective
of, in, or at the front: a frontal view; frontal attack.
Anatomy. of, relating to, or situated near the forehead or the frontal bone. coronal(def 4c).

Meteorology. of or relating to the division between dissimilar air masses: frontal zone; frontal surface.
Fine Arts. exhibiting frontality. parallel to the surface in the pictorial arts or seen from the front view in sculpture: the frontal plane.

noun
Ecclesiastical. a movable cover or hanging for the front of an altar.
frontlet(def 1).

Anatomy. any of several parts in the frontal region, especially the frontal bone.

 

reference: https://www.dictionary.com/browse/frontal-sinus

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