cusp
kuhsp
- n point formed by two intersecting arcs (as from the intrados of a Gothic arch)
- n a thin triangular flap of a heart valve
- n small elevation on the grinding surface of a tooth
- He's on the cusp of a paradigm shift in which disability becomes ability, disadvantage becomes advantage.
- What is it about tonight's results that suggests Obama should be afraid of progressive action on the cusp of a depression? (See pictures of the campaign from Barack Obama's point of .
- Bill Clinton did, while Republican Bob Livingston, on the cusp of being named House Speaker in 1998, did not.