A state of matter in which the degree of molecular order is
intermediate between the perfect three-dimensional, long-range
positional and orientational order found in solid crystals and the
absence of long-range order found in
isotropic liquids, gases, and
amorphous solids.
Source:
PAC, 2002, 74, 493
(Definitions of basic terms relating to polymer liquid crystals(IUPAC Recommendations
2001))
on page 495