1. radio source an object that radiates radio waves
  2. rickettsiosis infectious disease caused by ticks or mites or body lice infected with rickettsial bacteria
  3. redispose dispose anew
  4. pseudocyesis physiological state in which a woman exhibits symptoms of pregnancy but is not pregnant
  5. disassociate part; cease or break association with
  6. dissociation the act of removing from association
  7. Rhodes grass perennial grass of South Africa introduced into United States; cultivated as forage grass in dry regions
  8. red siskin South American species of scarlet finch with black head and wings and tail
  9. dissociate part; cease or break association with
  10. red scare a period of general fear of communists
  11. metacyesis pregnancy resulting from gestation elsewhere than in the uterus
  12. road sense good judgment in avoiding trouble or accidents on the road
  13. press association an agency to collects news reports for newspapers and distributes it electronically
  14. reticence the trait of being uncommunicative
  15. secret society a society that conceals its activities from nonmembers
  16. genus Zoisia lawn grasses native to southeastern Asia and New Zealand
  17. Royal Society an honorary English society (formalized in 1660 and given a royal charter by Charles II in 1662) through which the British government has supported science
  18. process cheese made by blending several lots of cheese
  19. red sorrel East Indian sparsely prickly annual herb or perennial subshrub widely cultivated for its fleshy calyxes used in tarts and jelly and for its bast fiber
  20. redeposit deposit once again

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