Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: cusp  kúsp
  1. Point formed by two intersecting arcs (as from the intrados of a Gothic arch)
     
  2. A thin triangular flap of a heart valve
    - leaflet
     
  3. Small elevation on the grinding surface of a tooth
     
  4. An event marking a unique or important historical change of course or one on which important developments depend
    - landmark, turning point, watershed
     
  5. A sharp point or pointed end; a point where an otherwise smooth curve comes to a point

Derived forms: cusps

Type of: flap, juncture, occasion, peak, point, tip

Part of: cardiac valve, heart valve, tooth

Encyclopedia: Cusp