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 MDI
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
MDI: 1. Metered-dose inhaler; 2. Multiple daily injections; 3. Mental developmental index, as in "the Bayley Mental Developmental Index (MDI), which measures language, memory, and problem-solving abilities."
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