cusp (n.)

  1. point formed by two intersecting arcs (as from the intrados of a Gothic arch)

  2. a thin triangular flap of a heart valve

    [ Syn: leaflet ]

  3. small elevation on the grinding surface of a tooth

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.