An Etymological Dictionary of Astronomy and Astrophysics
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The act or state of coordinating or of being coordinated.

Verbal noun of → coordinate.

A chemical compound in which a group of atoms or ions are attached by a coordination bond to a usually metallic central atom or ion.

→ coordination; → compound.

Crystallography: The crystal structure of a → coordination compound.

→ coordination; → lattice.

1) Crystallography: The number of nearest neighbors of an atom or ion in a → crystal lattice. A large coordination number indicates that the structure is more closely packed.
2) Chemistry: The number of atoms, ions, or molecules surrounding a central atom or ion in a complex.

→ coordination; → number.