GEMET Thesaurus

  1. oak
  2. objection
  3. obligation to inform
  4. obligation to label
  5. observation satellite
  6. occupation
  7. occupational disease
  8. occupational group
  9. occupational health
  10. occupational health care
  11. occupational medicine
  12. occupational safety
  13. occupational safety regulation
  14. occupational status
  15. ocean
  16. ocean circulation
  17. ocean current
  18. ocean dumping
  19. ocean exploitation
  20. ocean outfall
  21. ocean temperature
  22. ocean-air interface
  23. Oceania
  24. oceanic climate
  25. oceanography
  26. odonate
  27. odour
  28. odour nuisance
  29. off-peak commuting
  30. off-peak travelling
  31. off-peak working
  32. off-site
  33. offence against the environment
  34. office
  35. official duty
  36. official hearing
  37. offset policy (emissions trading)
  38. offshore mining
  39. offshore oil drilling
  40. oil and fat industry
  41. oil binding agent
  42. oil boom
  43. oil disaster
  44. oil exploration
  45. oil extraction
  46. oil pipeline
  47. oil pollution
  48. oil pollution abatement
  49. oil production (chain)
  50. oil recovery vessel
  51. oil refinery
  52. oil refining
  53. oil residue recuperation
  54. oil shale
  55. oil slick
  56. oil spill
  57. oil tanker
  58. oil-based energy
  59. old hazardous site
  60. old landfill site
  61. olfactometry
  62. olfactory pollution
  63. olive oil mill wastewater
  64. on-line service
  65. on-site wastewater treatment
  66. onchocerciasis
  67. oncology
  68. ontogenesis
  69. open lawn
  70. open sea
  71. open sea fishing
  72. opencast mining
  73. operating data
  74. opinion
  75. opinion survey
  76. order
  77. ordinance
  78. ore
  79. organ
  80. organic carbon
  81. organic chemistry
  82. organic farming
  83. organic matter
  84. organic nitrogen
  85. organic pollutant
  86. organic pollution
  87. organic solvent
  88. organic substance
  89. organic waste
  90. organisation (law)
  91. organisation of teaching
  92. organisation of the legal system
  93. organisation of work
  94. organism
  95. organochlorine compound
  96. organohalogen compound
  97. organoleptic property
  98. organometallic compound
  99. organonitrogen compound
  100. organooxygen compound
  101. organophosphorous compound
  102. organosilicon compound
  103. organosulphur compound
  104. organotin compound
  105. ornithology
  106. orography
  107. orthopteran
  108. osmosis
  109. outer space (allocation plan)
  110. oven
  111. overburden
  112. overcrowding
  113. overexploitation
  114. overfertilisation
  115. overfishing
  116. overflow (outlet)
  117. overgrazing
  118. overhead power line
  119. overpopulation
  120. overturn (limnology)
  121. overwintering
  122. ovine
  123. ownership
  124. oxidation
  125. oxidation-reduction
  126. oxide
  127. oxidisable material
  128. oxidising agent
  129. oxygen
  130. oxygen content
  131. oxygen deficiency
  132. oxygenation
  133. oyster farming
  134. ozone
  135. ozone depletion potential
  136. ozone layer
  137. ozone layer depletion
  138. ozonisation