geometrical equivalence

in polymers
https://doi.org/10.1351/goldbook.G02618
The symmetry correspondence among units belonging to the same chain. The symmetry elements always bear a special relationship to the chain axis.
See also:
line repetition groups
Source:
Purple Book, 1st ed., p. 77 [Terms] [Book]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014