Noun
One who is not a sibling but has a relationship of that kind.
- Examples
-
[…] the girls were older than average when they entered the family and thus did not develop the usual pseudosibling relationship […]
More examples (1)
With multiple stepparents, stepsiblings, half siblings and pseudosiblings, it’s a whole new type of family, and with it comes the challenge to design a home where everyone feels welcome.