1. The quality or state of being heterologous; difference in structure or origin.
Usage: technical; biology
2. In logic and philosophy, a self-referential contradiction or paradox, especially one arising from the application of a predicate to itself.
Usage: formal; philosophy

Examples

• The heterology between the two tissue types made them unsuitable for transplantation.
• Biologists study heterology to understand evolutionary relationships between different organisms.
• The concept of heterology in logic helps identify self-referential paradoxes.
• Heterology and homology are contrasting principles in comparative anatomy.