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 Supernumerary
Medically reviewed by Min Clinic Staff | Updated: January 2026
Supernumerary: Beyond the normal number, extra. For example, a supernumerary chromosome is an extra one beyond the usual number of 46, and a supernumerary digit is an extra finger or toe.