1. cross-refer refer from one entry to another, as in catalogues, books, and lists
  2. gross profit the net sales minus the cost of goods and services sold
  3. genus Porphyra a genus of protoctist
  4. gas pressure the pressure exerted by a gas
  5. genus Porphyrio Old World purple gallinules
  6. chrysoprase a green variety of chalcedony valued as a gemstone
  7. crossbreed the offspring of genetically dissimilar parents or stock
  8. creaseproof of fabric that does not wrinkle easily
  9. horse brier a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries
  10. prefer like better; value more highly
  11. Regius professor holder of a British professorship created by a royal patron
  12. perspirer a person who perspires
  13. disprover a debater who refutes or disproves by offering contrary evidence or argument
  14. grasshopper terrestrial plant-eating insect with hind legs adapted for leaping
  15. superfluous more than is needed, desired, or required
  16. grass parakeet small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors
  17. greaseproof paper paper that is impermeable to oil or grease; used in cooking
  18. greaseproof resistant to penetration by grease or oil or wax
  19. prepare for prepare mentally or emotionally for something unpleasant
  20. horse-brier a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries