Step family
A stepfamily is a family that gets a parent through a new marriage, whether the parent was widowed or divorced, or had not married his child's other parent. For example, if a girl's mother dies and her father marries another woman, the woman is her stepmother.
Other websites
![English Wiktionary](http://upload.wikimedia.org/wikipedia/commons/thumb/0/05/WiktionaryEn_-_DP_Derivative.svg/50px-WiktionaryEn_-_DP_Derivative.svg.png)
The English Wiktionary has a dictionary definition (meanings of a word) for: stepfamily