noun
infants and toddlers; babies and preschool children
Refers collectively to very young children, typically from birth up to around school age. Often used in medical, educational, and policy contexts.
この病院は乳幼児の予防接種を行っています。
This hospital provides vaccinations for infants and toddlers.
乳幼児の
Support programs for families with babies and preschool children have been expanded.