D defs.my
Entry 2 senses Webster, 1913

Uterine

/yo͞ot'-ẽr-ən/ · U·ter·ine · IPA /ˈjutəɹaɪn/
01 a. Of or instrument to the uterus, or womb.
  1. 1.
    Of or instrument to the uterus, or womb.
  2. 2.
    Born of the same mother, but by a different father.
    “Walter Pope, uterine brother to Dr. Joh. Wilki��.” — Wood.