noun
preschool child
Formal term used in educational and administrative contexts for a child who has not yet entered elementary school. Often contrasted with 就学児童 (school-age child).
See also: 就学児童
未就学児童を対象とした交通安全教室が開かれた。
A traffic safety class for preschool children was held.
この施設は未就学児童の利用が無料です。
This facility is free for preschool children.