1. Lothian Region a district in southeast central Scotland (south side of the Firth of Forth) and the location of Edinburgh
  2. hydrogen a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
  3. nether region the abode of Satan and the forces of evil
  4. Italian region Italy is divided into 20 regions for administrative purposes
  5. dinner gown a gown for evening wear
  6. red region a place of eternal fire envisaged as punishment for the damned
  7. D region the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves
  8. heat energy a form of energy that is transferred by a difference in temperature
  9. heat engine any engine that makes use of heat to do work
  10. motor region the cortical area that influences motor movements
  11. egregious conspicuously and outrageously bad or reprehensible
  12. hidden reserve reserves that do not show up on the balance sheet
  13. hidden tax a tax paid unwittingly by the consumer
  14. hydrogen ion a positively charged atom of hydrogen
  15. Tidewater region the coastal plain of the South: eastern parts of Virginia and North Carolina and South Carolina and Georgia
  16. heterogeneous consisting of elements not of the same kind or nature
  17. itineration journeying from place to place preaching or lecturing
  18. Dano-Norwegian book language
  19. French region a geographical subdivision of France
  20. addition reaction a chemical reaction in which one molecule is added to another