What is The difference between nematic smectic and cholesteric liquid crystals what is the difference between nematic smectic and cholesteric liquid crystals

Nematic is a see also of smectic. Smectic is a see also of nematic.
As adjectives the difference between smectic and nematic is that smectic is (chemistry|physics) describing a class of liquid crystals whose molecules are aligned in layers, with the molecules lying perpendicular to the plane of the layers while nematic is (physics|chemistry| of certain liquid crystals) whose molecules align in loose parallel lines.
As nouns the difference between smectic and nematic is that smectic is such a liquid crystal while nematic is a liquid crystal whose molecules align in loose parallel lines