A cusp is the most pointed end of a curve. It often refers to cusp (anatomy), a pointed structure on a tooth.

Cusp or CUSP may also refer to:

Mathematics

  • Cusp (singularity), a singular point of a curve
  • Cusp catastrophe, a branch of bifurcation theory in the study of dynamical systems
  • Cusp form, in modular form theory
  • Cusp neighborhood, a set of points near a cusp
  • Cuspidal representation, a generalization of cusp forms in the theory of automorphic representations

Science and medicine

  • Beach cusps, a pointed and regular arc pattern of the shoreline at the beach
  • Behavioral cusp, a change in behavior with far-reaching consequences
  • Caltech-USGS Seismic Processing, software for analyzing earthquake data
  • Center for Urban Science and Progress, a graduate school of New York University focusing on urban informatics
  • CubeSat for Solar Particles, a satellite launched in 2022
  • Cusp (anatomy), a pointed structure on a tooth
  • Cusps of heart valves, leaflets of a heart valve
  • Nuclear cusp condition, in electron density

Other uses

  • Cusp (astrology)
  • Cusp (film), a 2021 American documentary following three teenage girls at the end of summer
  • Cusp (novel), a 2005 science fiction story by Robert A. Metzger
  • Cusp Conference, an annual gathering of thinkers, innovators, etc. from various fields
  • Cusp generation, a name given to those born during the transitional years of two generations
  • Concordia University, St. Paul