Which term means out of place?

The term that means "out of place" is "ectopic." This term is commonly used in medical contexts to describe a condition where something is located in an abnormal position. A classic example is an ectopic pregnancy, where a fertilized egg implants outside the uterus, which is considered an abnormal and potentially dangerous situation.

In contrast, other terms have specific meanings that do not align with the definition of being "out of place." For instance, "extrapleural" refers to structures or conditions outside the pleural space of the lungs, not necessarily implying an abnormal positioning. "Exophytic" refers to growths that extend outward from a surface, such as tumors growing away from surrounding tissue, while "atypical" generally pertains to cells or structures that show irregularities or abnormalities but does not convey the idea of being out of place. Each of these terms, while medically relevant, describes different phenomena and hence do not fulfill the requirement of meaning "out of place" in the same way that "ectopic" does.