Term: fibrous crystal in polymers
https://doi.org/10.1351/goldbook.F02355

Definition:
A type of crystal significantly longer in one dimension than in either of the other two. Fibrous crystals may comprise essentially extended chains parallel to the fibre axis; however, macroscopic polymer fibres containing chain-folded crystals are also known.

Source: Purple Book, 1st ed., p. 83 (http://old.iupac.org/publications/books/author/metanomski.html)

Citation: 'fibrous crystal in polymers' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.F02355

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