foster child
noun
1.
a child raised by someone who is not its natural or adoptive parent.
2.
a needy child, as one living in an impoverished country, supported or aided by contribution to a specific charity.
Origin
1150-1200;
Middle English
fostercild
British Dictionary definitions for
foster child
foster child
noun
1.
a child looked after temporarily or brought up by people other than its natural or adoptive parents