Final answer:
An irreducible hernia is a hernia whose contents cannot be "pushed back" into the abdominal cavity.
Step-by-step explanation:
A hernia whose contents cannot be "pushed back" into the abdominal cavity is referred to as an irreducible hernia. Irreducible hernias occur when a part of the intestines or other tissue becomes stuck within the hernia sac, preventing it from being pushed back inside the abdominal cavity.