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Of or relating to the mesomorphic phase of a liquid crystal in which molecules are closely aligned in a distinct series of layers, with the axes of the molecules lying perpendicular to the plane of the layers.

[From Greek smēktos, smeared, from smēkhein, to wash off.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) chem (of a substance) existing in or having a mesomorphic state in which the molecules are oriented in layers. Compare nematic See also liquid crystal
[C17: via Latin from Greek smēktikos, from smēkhein to wash; from the soaplike consistency of a smectic substance]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsmɛk tɪk)

(of liquid crystals) noting a mesomorphic state in which the arrangement of the molecules is in layers. Compare nematic.
[1920–25; < French smectique (1922) < Latin smēcticus cleansing]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
As a representative polymorphic polymer, iPP can develop [alpha], [beta], [gamma], [delta], [epsilon], and smectic mesophase [1-5], under different crystallization conditions.
Isotropic/ Smectic Nematic degradation T ([degrees]C) 166 212 290 Heating Table 2: Kinetic parameters of the reaction progress in various systems.
The BTU compounds having terminal alkoxy groups at the both ends of the molecule show interesting mesogenic behavior, displaying nematic, smectic A, and smectic C phases, depending on the position and length of the alkyl chains [40].
Tateyama, "Synthesis and structure of smectic clay/ poly(methyl methacrylate) and clay/polystyrene nanocomposites via in situ intercalative polymerization," Polymer, vol.
Smectic and Columnar Liquid Crystals: Concepts and Physical Properties Illustrated by Experiments.
de Gennes was opened physicochemical structure (ferroelectric smectic), marked the beginning of the production of liquid crystal displays for computers, TV-sets and mobile phones [11-13].
(2013) Radiocesium interception potential (RIP) of smectic and kaolin reference minerals containing illite (micaceous mineral) as impurity.
Bentonite is classified as a smectic soil composed of an expandable 2:1 type of alumino silicate clay mineral and also consists of flat particles with characteristic size of about 102 to 103 nm with negatively charged surface ions and sodium counter ions [31].
One- and Two-Dimensional Fluids: Properties of smectic, lamellar and columnar liquid crystals.
Summary: High polarization power may be achieved by designing dopants with chiral cores having polar functional groups that are conformationally more restricted when confined to the zigzag binding site of the (smectic) SmC host.
Figures 1(a)-(c) depict three commonly occurring phases: Smectic, Nematic and Cholesteric (chiral-Nematic).