cusp of the second kind

cusp of the second kind

[′kəsp əvthə ′sek·ənd kīnd]
(mathematics)
A cusp such that the two portions of the curve adjacent to the cusp lie on the same side of the limiting tangent to the curve at the cusp.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.