FOSTER

foster,adj.1. (Of a relationship) involving parental care given by someone not related by

blood or legal adoption <foster home>.2. (Of a person) giving or receiving parental care to or

from someone not related by blood or legal adoption <foster parent> <foster child>.

foster,vb. To give care to (something or someone); esp., to give parental care to (a child who

is not one’s natural or legally adopted child).[Blacks Law 8th]