MedicalTerminology DB

Meaning of c-erbB-2: A protein involved in normal cell growth.

Definition of c-erbB-2

A protein involved in normal cell growth. It is found on some types of cancer cells, including breast and ovarian. Cancer cells removed from the body may be tested for the presence of c-erbB-2 to help decide the best type of treatment. c-erbB-2 is a type of receptor tyrosine kinase. Also called HER2/neu, human EGF receptor 2, and human epidermal growth factor receptor 2.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

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.