(chain) identity period of a polymer

of a polymer
Synonyms: (chain) repeating distance, repeating distance
https://doi.org/10.1351/goldbook.I00954
The shortest distance along the chain axis for translational repetition of the chain structure. The chain identity period is usually denoted by \(c\). Synonymous with (chain) repeating distance.
Source:
Purple Book, 1st ed., p. 77 [Terms] [Book]