1. theater of operations a region in which active military operations are in progress
  2. theatre of operations a region in which active military operations are in progress
  3. base of operations installation from which a military force initiates operations
  4. trading operations financial transactions at a brokerage
  5. alliteration use of the same consonant at the beginning of each word
  6. field of operations a region in which active military operations are in progress
  7. deterioration process of changing to an inferior state
  8. water of hydration the water present in hydrated compounds
  9. matrix operation a mathematical operation involving matrices
  10. transpiration the emission of water vapor from the leaves of plants
  11. threatened abortion the appearance of symptoms that signal the impending loss of the products of conception
  12. perspiration salty fluid secreted by sweat glands
  13. Treasury obligations negotiable debt obligations of the United States government which guarantees that interest and principal payments will be paid on time
  14. proliferation a rapid increase in number
  15. desperation a state in which all hope is lost or absent
  16. respiration a single complete act of breathing in and out
  17. rescue operation an operation organized to free from danger or confinement
  18. transfiguration a striking change in appearance or character
  19. perseveration the act of persisting or persevering
  20. rate of respiration the rate at which a person inhales and exhales