mesomorphic phase

also contains definition of: nematic state
https://doi.org/10.1351/goldbook.M03846
Often formed by concentrated systems of @S06194@. These are states of matter in which @I03298@ molecules (or particles) are regularly arranged in one (nematic state) or two (@S05714@) directions, but randomly arranged in the remaining direction(s).
Source:
PAC, 1972, 31, 577. (Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry) on page 613 [Terms] [Paper]
Citation: 'mesomorphic phase' 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.M03846 RIS BibTex EndNote
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