Stepchild Source: en.wikipedia.org/wiki/Stepchild

A stepchild is the offspring of one's spouse, but not one's own offspring, either biologically or through adoption.


The traditional usage of the term "stepfamily" refers to a married couple where one or both members of the couple have children, with a different biological parent. Some also apply the term loosely to non-custodial relationships where “stepparent" can refer to the partner of a parent with whom the child does not live.[1]

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