What is pl. (Far.) An instrument for pinching a horse's nose, and thus restraining him. Note: [Formerly used in the sing.] The barnacles . . . give pain almost equal to that of the switch. Youatt called?

barnacle — pl. (Far.) An instrument for pinching a horse's nose, and thus restraining him. Note: [Formerly used in the sing.] The barnacles . . . give pain almost equal to that of the switch. Youatt. (Webster's 1913.)

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