monster

monster /mon·ster/ (mon´ster) a term formerly used to denote a fetus or infant with such pronounced developmental anomalies as to be grotesque and usually nonviable.

---

mon·ster (mnstr)

n.

1. An animal, a plant, or other organism having structural defects or deformities.

2. A fetus or an infant that is grotesquely abnormal and usually not viable.

---

monster

a fetus or neonate with such pronounced developmental anomalies as to be grotesque and usually nonviable. Classified in many ways, e.g. single or double.