Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Ethmoid bone
Medically reviewed by Min Clinic Staff | Updated: January 2026
Ethmoid bone: An irregularly shaped, spongy bone that provides the floor of the front part of the skull and the roof of the nose. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve.