1. the quality or state of being complementary; the relationship between two things that complete or enhance each other
Usage: commonly used in science, philosophy, and general contexts
2. in physics and biology, the principle that certain pairs of properties or entities cannot be fully determined simultaneously or independently
Usage: technical; used in quantum mechanics and genetics

Examples

• The complementarity of their skills made them an effective team.
• In quantum mechanics, complementarity refers to the wave-particle duality of light.
• The complementarity between theory and practice is essential in education.
• Their different perspectives showed a complementarity that strengthened the project.
• DNA base pairing demonstrates complementarity in molecular biology.
• The complementarity of the two approaches provided a more complete solution.