[n. of agent f. AVERRUNCATE in the improper sense 2.] An instrument for cutting off the branches of trees at a height above the head, consisting of a pair of pruning shears, or a knife-blade working within a hook, mounted on a pole and worked by a string or wire.

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1842.  in Brande.

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1864.  in Webster (Averruncator, and Aberuncator).

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1878.  R. Thompson, Gardener’s Assist., 71. By means of an averruncator branches more than an inch in diameter and at the height of 12 or 15 feet from the ground may be cut off without using a ladder or steps.

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