1. theatre of operations a region in which active military operations are in progress
  2. theater 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. respiration a single complete act of breathing in and out
  8. matrix operation a mathematical operation involving matrices
  9. rescue operation an operation organized to free from danger or confinement
  10. transpiration the emission of water vapor from the leaves of plants
  11. deterioration process of changing to an inferior state
  12. threshold operation an operation performed on operands in order to obtain the value of a threshold function
  13. perspiration salty fluid secreted by sweat glands
  14. sacrifice operation killing or injuring others while annihilating yourself
  15. proliferation a rapid increase in number
  16. desperation a state in which all hope is lost or absent
  17. transfiguration a striking change in appearance or character
  18. threatened abortion the appearance of symptoms that signal the impending loss of the products of conception
  19. perseveration the act of persisting or persevering
  20. rate of respiration the rate at which a person inhales and exhales