a. [f. JACOBIN sb.1 + -IC.] Of, pertaining to, or characteristic of the French Jacobins; ultra-democratic.

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1793.  Hist., in Ann. Reg., 274/2. Every method … that Jacobinic invention could suggest, or Jacobinic energy employ.

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1802.  A. Hamilton, Wks. (1886), VII. 325. To rise to power on the ladder of Jacobinic principles.

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1881.  Athenæum, 20 Aug., 233/2. Throughout the Jacobinic period the notion was widely current that as the people was sovereign, any crowd that might gather in the street … was sovereign.

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