Mesomorphic state

{
  "id": "MLC-T-CHM-007219",
  "term": "Mesomorphic state",
  "field": "Chemistry",
  "definition": "A state of matter whose degree of molecular order lies between the full three-dimensional positional and orientational order of a crystal and the lack of long-range order in an isotropic liquid. It covers liquid-crystal phases, which keep orientational order, and also plastic crystals, where molecules keep positional order but rotate freely. A phase within this state is called a mesophase.",
  "subject": "Polymer",
  "see_also": [
    "isotropic"
  ],
  "references": [
    "PAC, 2002, 74, 493. 'Definitions of basic terms relating to polymer liquid crystals (IUPAC Recommendations 2001)' on page 495 (https://doi.org/10.1351/pac200274030493)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/mesomorphic-state/"
}