Assertion: atom | /r/HasAspect | great difficulty
Facets:
value: in rotating
type: OTHER
Source sentences:
text: If the molecules are large, rigid, and either roughly planar or linear, as in cholesteryl acetate or p-azoxyanisole, the solid may melt to an anisotropic liquid (i.e., one that is not uniform in all directions) in which the molecules are free to move about but have great difficulty in rotating.