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A multiplicity figure with a letter.
Also known as: Wyckoff site notation, Site multiplicity notation
The notation naming a set of symmetry-equivalent positions in a space group by a multiplicity figure and a letter.
Names a set of symmetry-equivalent positions in a space group by its multiplicity and a letter.
Contexts: Laboratory
Assigns letters from a upward in order of increasing multiplicity, so the letter alone tells a reader how special a site is within its own space group.
Contexts: Laboratory
A figure followed immediately by a lower-case letter, such as a four then the letter a.