ˈsmektik adjective
Etymology: Latin smecticus cleansing, from Greek smēktikos, from smēktos (verbal of smēchein to wash off, clean) + -ikos -ic — more at smite
1. : purifying, detergent
2. : of, relating to, or being the phase of a liquid crystal characterized by arrangement of molecules in layers with the long molecular axes in a given layer being parallel to one another and those of other layers and perpendicular or slightly inclined to the plane of the layer — compare cholesteric 2, nematic