1. irrational motive a motivation that is inconsistent with reason or logic
  2. rational motive a motive that can be defended by reasoning or logical argument
  3. originative containing seeds of later development
  4. ethical motive motivation based on ideas of right and wrong
  5. marginal utility (economics) the amount that utility increases with an increase of one unit of an economic good or service
  6. originality the quality of being new (not derived from something else)
  7. originalism the belief that the United States Constitution should be interpreted in the way the authors originally intended it
  8. Aboriginal Australian the Austronesian languages spoken by Australian aborigines
  9. penultimate next to the last
  10. railway locomotive a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks
  11. original sin a sin said to be inherited by all descendants of Adam
  12. automotive containing within itself the means of propulsion or movement
  13. urogenital medicine the branch of medicine that deals with the diagnosis and treatment of disorders of the urinary tract or urogenital system
  14. original preceding all others in time
  15. regional enteritis a serious chronic and progressive inflammation of the ileum producing frequent bouts of diarrhea with abdominal pain and nausea and fever and weight loss
  16. artificial additive an additive to food intended to improve its flavor or appearance or shelf-life
  17. regional anatomy the study of anatomy based on regions or divisions of the body and emphasizing the relations between various structures (muscles and nerves and arteries etc.) in that region
  18. originate come into existence; take on form or shape
  19. Reginald Marsh United States painter (1898-1954)
  20. Argonautidae represented solely by the genus Argonauta

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