1. pretentious creating an appearance of importance or distinction
  2. protagonist the principal character in a work of fiction
  3. proteinase any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
  4. pertinacious stubbornly unyielding
  5. portentous of momentous or ominous significance
  6. proteinaceous relating to or of the nature of protein
  7. boarding house a private house that provides accommodations and meals for paying guests
  8. pretension the advancing of a claim
  9. boardinghouse a private house that provides accommodations and meals for paying guests
  10. preteenager a preadolescent boy or girl
  11. pertinent being of striking appropriateness
  12. pyrotechnics the craft of making fireworks
  13. credentials a document attesting to the truth of certain stated facts
  14. periodontics the branch of dentistry dealing with diseases of the gums and other structures around the teeth
  15. proteomics the branch of genetics that studies the full set of proteins encoded by a genome
  16. pratincole Old World shorebird with long pointed wings and short legs
  17. Proto-Norse the Germanic language of Scandinavia up until about 700
  18. proteinuria the presence of excessive protein in the urine
  19. protein an organic compound essential to living cells
  20. prudential arising from or characterized by prudence especially in business matters