1. producer someone who manufactures something
  2. prodromal symptomatic of the onset of an attack or a disease
  3. producer gas a gas made of carbon monoxide and hydrogen and nitrogen
  4. prince charming a suitor who fulfills the dreams of his beloved
  5. prodigal recklessly wasteful
  6. prodigious great in size, force, extent, or degree
  7. productively in a productive way
  8. protoceratops small horned dinosaur
  9. protest march occasion when you can express opposition by marching (usually on some government institution) without a license
  10. primeval having existed from the beginning
  11. predecessor one who goes before you in time
  12. produce bring forth or yield
  13. bird's-eye maple maple wood having a wavy grain with eyelike markings
  14. Pteridospermaphyta used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales
  15. productive capable of bringing forth, especially abundantly
  16. triumphal joyful and proud especially because of triumph or success
  17. truth serum an intravenous anesthetic drug that has a hypnotic effect
  18. proteosome vaccine a form of vaccine that can be administered by an inhaler
  19. prodrome an early symptom that a disease is developing or that an attack is about to occur
  20. primaeval having existed from the beginning