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 Cusp

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Cusp: In reference to heart valves, one of the triangular segments of the valve which opens and closes with the flow of blood. In reference to teeth, a raised area of the biting surface.

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