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treatise Line breaks: trea|tise
Pronunciation: /ˈtriːtɪs/

Definition of treatise in English:


A written work dealing formally and systematically with a subject: his treatise on Scottish political theory
More example sentences
  • They study magic and write treatises and quarrel, as scholars will, but none of them can cast a spell to save his life.
  • He developed his interest in mechanics, writing treatises on his inventions which he circulated in manuscript.
  • He wrote several intellectual treatises that are admired even today.


Late Middle English: from Anglo-Norman French tretis, from Old French traitier (see treat).

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