uterine sibling

A half sibling having the same mother but a different father.

Japanese Meaning

母親が同じで父親が異なる半兄弟（または半姉妹）

After years apart, she finally reconnected with her uterine sibling and they began to build a relationship.

長年離れていた後、彼女はついに腹違いの兄弟姉妹と再会し、関係を築き始めた。

Sense（1）

A half sibling having the same mother but a different father.

uterine siblings

（ plural ）