a. [? f. L. arcus bow; cf. circular.] ? Of the form of an arc.

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1797.  A. Cumming, Com. Board Agric., II. 366. But the dishing (or oblique position of the spokes) is by no means peculiar to conical wheels, and is equally applicable to cylindrical: and the advantages arising from this arcular construction of the wheel, [etc.].

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