uterine brother

Noun

A half brother sharing the same mother but having a different father.

Japanese Meaning

同じ母親を持ち、父親が異なる半兄弟

My uterine brother surprised me by visiting during the holidays, and we spent the time catching up.

私の同母異父の兄は休暇中に訪ねてきて私を驚かせ、私たちは近況を語り合って過ごしました。

Sense（1）

A half brother sharing the same mother but having a different father.

Coordinate term: uterine sister

uterine brothers

（ plural ）

uterine brethren

（ obsolete plural ）