rare. [f. TRACTATE (or L. tractātus) + -ule, dim. suffix, as in globule, granule, etc.] A small tractate or treatise.

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1878.  Academy, 25 May, 455/2. For completeness and grace of style Mr. [Austin] Dobson’s little essay [‘Note on some Foreign Forms of Verse’] is worthy to rank as a prose tractatule beside some of his own verse.

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1892.  Sat. Rev., 28 May, 636/1. The first [volume] contains a much more mixed multitude of tractatules.

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1901.  N. Smith, in Fortn. Rev., Oct., 403. The carnal man cannot help sighing for a tractate—a tractatule even of the tiniest—on English verse, from the Venerable One.

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