1. bicuspid valve valve with two cusps
  2. tricuspid valve valve with three cusps
  3. bicuspidate having two cusps or points (especially a molar tooth)
  4. exhaust valve a valve through which burned gases from a cylinder escape into the exhaust manifold
  5. poppet valve a mushroom-shaped valve that rises perpendicularly from its seat; commonly used in internal-combustion engines
  6. bicuspid having two cusps or points (especially a molar tooth)
  7. cuspidal having cusps or points
  8. escape valve a valve in a container in which pressure can build up
  9. slide valve valve that opens and closes a passageway by sliding over a port
  10. auspicious indicating favorable circumstances and good luck
  11. clapper valve a simple valve with a hinge on one side
  12. expedite process fast and efficiently
  13. perceptively in a keenly discerning manner
  14. cuspidate having cusps or points
  15. safety valve a valve in a container in which pressure can build up
  16. acceptable worthy of approval or satisfactory
  17. spiteful showing malicious ill will and a desire to hurt
  18. deceptively in a misleading way
  19. perceptive of or relating to awareness via the senses
  20. bivalve marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together