Medical Definition of Developmental delay
Developmental delay: A condition in which a child is behind schedule in reaching milestones of early childhood development. This term is often used as a euphemism for mental retardation, which can be less a delay than a permanent limitation of a child's ability to progress.
Quick GuideLice & Nits: How to Get Rid of Head Lice
Subscribe to MedicineNet's Children's Health & Parenting Newsletter