1. Sinclair Lewis United States novelist who satirized middle-class America in his novel Main Street (1885-1951)
  2. circular plane a plane with a flexible face that can plane concave or convex surfaces
  3. singular form the form of a word that is used to denote a singleton
  4. single prop a propeller plane with a single propeller
  5. nuclear power nuclear energy regarded as a source of electricity for the power grid (for civilian use)
  6. Sanicula Europaea sanicle of Europe and Asia having white to pale pink flowers
  7. nuclear RNA ribonucleic acid found in the nucleolus of the cell
  8. scatterbrain a flighty and disorganized person
  9. Sinclair United States writer whose novels argued for social reform
  10. chloroprene derivative of butadiene used in making neoprene by polymerization
  11. single-reed woodwind a beating-reed instrument with a single reed
  12. chocolate-brown of a color similar to that of wood or earth
  13. nuclear weapon a weapon of mass destruction whose explosive power derives from a nuclear reaction
  14. inclination the act of bending forward
  15. snuff-brown snuff colored; of a greyish to yellowish brown
  16. binocular vision vision involving the use of both eyes
  17. nuclear submarine a submarine that is propelled by nuclear power
  18. angle iron an L-shaped metal bracket
  19. prochlorperazine antipsychotic and antiemetic drug used to treat schizophrenia and to combat nausea and vomiting
  20. chukker-brown snuff colored; of a greyish to yellowish brown

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