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 Homo erectus

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

Homo erectus: A primate believed to have been an extinct ancestor of modern humans being (Homo sapiens). Known to have been tall (average 1.78 m or 5 feet, 10 inches), erect stature, smaller brain (about 75% the size of Homo sapiens), and a lower forehead than modern humans. Homo erectus is Latin for erect or upright man.

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