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smectic

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈsmɛktɪk/US:USA pronunciation: respellingUSA pronunciation: respelling(smektik)


WordReference Random House Unabridged Dictionary of American English © 2026
smec•tic  (smektik),USA pronunciation adj. [Physical Chem.](of liquid crystals)
  1. Chemistrynoting a mesomorphic state in which the arrangement of the molecules is in layers or planes. Cf. nematic. 
  • Greek smēktikós, equivalent. to smēkt(ós) smeared, verbid of smé̄chein to wash out, clean + -tikos -tic
  • Latin smēcticus
  • 1665–75 for earlier sense "cleansing''

Collins Concise English Dictionary © HarperCollins Publishers::
smectic /ˈsmɛktɪk/ adj
  1. (of a substance) existing in or having a mesomorphic state in which the molecules are oriented in layers
    Compare nematic
Etymology: 17th Century: via Latin from Greek smēktikos, from smēkhein to wash; from the soaplike consistency of a smectic substance
'smectic' also found in these entries (note: many are not synonyms or translations):

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