MedicalTerminology DB

1 Definition of ethmoid sinus

Meaning of ethmoid sinus: A type of paranasal sinus (a hollow space in the bones around the nose).

A type of paranasal sinus (a hollow space in the bones around the nose). Ethmoid sinuses are found in the spongy ethmoid bone in the upper part of the nose between the eyes. They are lined with cells that make mucus to keep the nose from drying out.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.