An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

The state or quality of being → complementary.

From → complementary + → -ity.

From osporandé, → complementary, + -gi, same as -i noun suffix.

Physical principle, put forward by Niels Bohr in 1928, that a complete knowledge of phenomena on atomic dimensions requires a description of both wave and particle properties.

→ complementarity; → principle.