/ θɪˈmætɪk; NAmE ; θiː-/ adjective
[ usually before noun ] connected with the theme or themes of sth :
the thematic structure of a text
► the·mat·ic·al·ly / -kli; NAmE / adverb :
The books have been grouped thematically.
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WORD ORIGIN
late 17th cent.: from Greek thematikos , from thema , from Greek , literally proposition ; related to tithenai to set or place.