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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

Derived forms: cusps

See also: cuspidal

Type of: flap, peak, point, tip

Part of: cardiac valve, heart valve, tooth

Encyclopedia: Cusp