mesomorphic phase

Also contains definition of: nematic state
https://doi.org/10.1351/goldbook.M03846
Often formed by concentrated systems of @[email protected] These are states of matter in which @[email protected] molecules (or particles) are regularly arranged in one (nematic state) or two (@[email protected]) 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]