1. Having a cusp or cusps.
1822. Imison, Sc. & Art, I. 425. The appearance of our moon when she is cusped or horned.
1853. Ruskin, Stones Ven., II. vi. § 95. 221. A cusped round arch, perfectly pure and simple.
1879. Salmon, Higher Plane Curves, § 214. To the cusped class also belongs the Cissoid of Diocles.
2. Of the form of a cusp.
1883. W. P. P. Longfellow, in Scribn. Mag., III. 427/1. This cusped junction displays the qualities of the curves at their meeting most conspicuously.
