[Cf. CANION (also spelt cannon), and CANNON sb.1] A cylindrical or sausage-like curl, properly horizontal, like the canions of breeches. Hence Cannon curls.

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c. 1800.  Mem. Mary Somerville, iii. (1873), 41. He wore a powdered wig, with cannons at the ears, and a pigtail.

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1857.  Geo. Eliot, Sc. Cleric. Life, Janet’s Repent., v. 218. With … sandy hair, which was this morning arranged in taller cannon curls than usual. Ibid., II. 190. Old lawyer Pittman’s daughters with cannon curls surmounted with large hats.

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