The mortality rate among newborn infants, typically within the first 28 days of life.

नवजात शिशु मृत्यु दर

English Usage: The neonatal death rate has been decreasing due to improved healthcare.

Hindi Usage: बेहतर स्वास्थ्य सेवाओं के कारण नवजात मृत्यु दर कम हो रही है।