frontal sinus
1
5.3
- noun
- /ˈfrʌntəl ˈsaɪnəs/
- Specialized
- As emphasized by Gerbino et al., it is important in all frontal sinus fracture cases to evaluate the frontal sinus outflow tract.
- frontal sinus fractures
- frontal sinus agenesis
- frontal sinus walls
Examples
-
Each frontal sinus is made up of two independent spaces that develop from different sources.
Academic text (2002) -
The patient presented no evidence of sinusitis, cyst, or mucocele involving the frontal sinuses.
Academic text (2005) -
On examination, a protuberance was noted in the region of the right frontal sinus.
Academic text (2006) -
The patent opening of the frontal sinus is visible superiorly.
Academic text (2008) -
The anterior wall of the left frontal sinus appeared dilated and thin and showed no signs of previous fracture.
Academic text (2005) -
The anterior wall of the frontal sinus was remodeled to achieve a normal forehead contour.
Academic text (2005) -
Most involved the frontal sinus, although the maxillary sinus, ethmoidal cells, and sphenoidal sinus can also be affected.
Academic text (2005) -
Evaluation of the ostiomeatal complex revealed mucosal hyperplasia and polyposis of the frontal sinus ostium.
Academic text (2005) -
Computed tomography revealed an abnormally dilated left frontal sinus occupying the whole left side of the frontal bone.
Academic text (2005) -
On examination, a protuberance was noted in the region of the right frontal sinus.
Synonyms
60
3.9
An air-filled cavity in skull bones near the nose that connects to the inside of the nose
1
3.7
An air space in the bones near the nose lined with mucus
1
5.4
Air-filled spaces in the bones around the nose that connect to the inside of the nose
Hollow spaces in the bones around the nose lined with a thin wet layer
Surface Forms
Morphology
The meaning is directly compositional: 'frontal' (pertaining to the front/forehead) combined with 'sinus' (an air-filled cavity) yields an air-filled cavity in the frontal bone above the eyes. This follows standard noun–modifier composition and has clear parallels in other languages and medical terminology, so a B1 learner who knows both constituents can reliably infer the meaning.
Etymology
Frontal sinus comes from two simple words: frontal meaning 'forehead' and sinus meaning 'hollow' or 'pocket'. That's why the name literally points to the small air space just above the eyes at the front of the skull.