National Agricultural Library Thesaurus

  1. Ophiopogonaceae USE Asparagaceae
  2. Ophiorrhiza
  3. Ophiorrhiza lanceolata USE Pentas lanceolata
  4. Ophiostoma
  5. Ophiostoma piceae
  6. Ophiostoma ulmi USE Ceratocystis ulmi
  7. Ophiostomataceae
  8. Ophiostomatales
  9. Ophiovalsa
  10. Ophiovirus
  11. Ophioxylon serpentinum USE Rauvolfia serpentina
  12. Ophismenus USE Oplismenus
  13. Ophiurinella USE Stenotaphrum
  14. Ophiuroidea
  15. Ophonus USE Harpalus
  16. Ophonus pubescens USE Harpalus rufipes
  17. Ophonus rufipes USE Harpalus rufipes
  18. Ophrestia
  19. Ophrys
  20. Ophrys lutea
  21. ophthalmology
  22. Ophyra USE Hydrotaea
  23. Ophyra aenescens USE Hydrotaea aenescens
  24. opiate alkaloids USE opium alkaloids
  25. opiate peptides USE opioid peptides
  26. Opiliaceae
  27. Opiliones
  28. opines
  29. opinions USE attitudes and opinions
  30. opinions and attitudes USE attitudes and opinions
  31. opinions, farmers' USE farmers' attitudes
  32. opinions, public USE public opinion
  33. opioid peptides
  34. opioids USE narcotics
  35. Opisina
  36. Opisina arenosella
  37. Opisthorchiidae
  38. Opisthorchis
  39. Opisthorchis viverrini
  40. opium alkaloids
  41. Opius
  42. Opius concolor
  43. Opius longicaudatus
  44. Opius oophilus USE Fopius arisanus
  45. Opizia USE Bouteloua
  46. Oplismenus
  47. Oplobates
  48. Oplobates woodwardi
  49. Oplomus
  50. Oplomus dichrous
  51. Oplopanax
  52. OpMNPV (Orgyia pseudotsugata multiple nucleopolyhedrovirus) USE Orgyia pseudotsugata multiple nucleopolyhedrovirus
  53. Opogona
  54. Opogona sacchari
  55. Opopanax
  56. Oporanthaceae USE Amaryllidaceae
  57. Oporinia USE Epirrita
  58. opossums
  59. opportunity costs
  60. Opsius
  61. Opsius stactogalus
  62. opsonins
  63. optic lobe
  64. optical density USE absorbance
  65. optical equipment
  66. optical instruments USE optical equipment
  67. optical properties
  68. optical radar USE lidar
  69. optics
  70. optimal diets USE optimal nutrition
  71. optimal nutrient intake USE optimal nutrition
  72. optimal nutrition
  73. optimisation USE optimization
  74. optimisation methods USE optimization
  75. optimization
  76. optimization methods USE optimization
  77. options trading
  78. Opulaster USE Physocarpus
  79. Opuntia
  80. Opuntia aurantiaca
  81. Opuntia compressa USE Opuntia humifusa
  82. Opuntia cordobensis USE Opuntia ficus-indica
  83. Opuntia decumana USE Opuntia ficus-indica
  84. Opuntia engelmannii
  85. Opuntia engelmannii var. lindheimeri
  86. Opuntia ficus-indica
  87. Opuntia ficus-indica var. gymnocarpa USE Opuntia ficus-indica
  88. Opuntia fragilis
  89. Opuntia gymnocarpa USE Opuntia ficus-indica
  90. Opuntia humifusa
  91. Opuntia inermis USE Opuntia stricta
  92. Opuntia lindheimeri USE Opuntia engelmannii var. lindheimeri
  93. Opuntia maxima USE Opuntia ficus-indica
  94. Opuntia paraguayensis USE Opuntia ficus-indica
  95. Opuntia phaeacantha
  96. Opuntia polyacantha
  97. Opuntia stricta
  98. Opuntia vulgaris USE Opuntia humifusa
  99. Opuntiella
  100. Oracella
  101. Oracella acuta
  102. oral administration
  103. oral communication
  104. oral contraceptives
  105. oral exposure USE dietary exposure
  106. oral presentations USE public speaking
  107. oral rehydration
  108. oral toxicity (drugs) USE drug toxicity
  109. oral vaccination
  110. orange coneflower USE Rudbeckia fulgida
  111. orange cosmos USE Cosmos sulphureus
  112. orange daylily USE Hemerocallis fulva
  113. orange hawkweed USE Hieracium aurantiacum
  114. orange jessamine USE Murraya paniculata
  115. orange juice
  116. orange melon USE Cucumis melo subsp. melo var. chito
  117. orange mint moth USE Pyrausta orphisalis
  118. orange peels
  119. orange pulp
  120. orange roughy USE Hoplostethus atlanticus
  121. orange spiny whitefly USE Aleurocanthus spiniferus
  122. orange tortrix USE Argyrotaenia citrana
  123. orange wattle USE Acacia saligna
  124. orange-spotted grouper USE Epinephelus coioides
  125. orangedog butterfly USE Papilio cresphontes
  126. orangehumped mapleworm USE Symmerista leucitys
  127. oranges
  128. oranges, sweet USE oranges
  129. orangestriped oakworm USE Anisota senatoria
  130. orangetailed potter wasp USE Delta latreillei petiolare
  131. Orangutan herpesvirus USE Pongine herpesvirus 2
  132. orangutans USE Pongo pygmaeus
  133. orb weavers USE Araneidae
  134. Orbexilum
  135. Orbignya USE Attalea
  136. Orbignya barbosiana USE Attalea speciosa
  137. Orbignya huebneri USE Attalea speciosa
  138. Orbignya martiana USE Attalea speciosa
  139. Orbignya oleifera USE Attalea speciosa
  140. Orbignya phalerata USE Attalea speciosa
  141. Orbignya speciosa USE Attalea speciosa
  142. Orbilia
  143. Orbiliaceae
  144. Orbiliales
  145. Orbiliomycetes
  146. orbits
  147. Orbivirus
  148. orchard ermine moth USE Yponomeuta padellus
  149. orchard soils
  150. orchardgrass USE Dactylis glomerata
  151. orchards
  152. orchards, seeds USE sycamore maple
  153. Orchesella
  154. Orchesella cincta
  155. Orchesellaria
  156. orchid aphid USE Sitobion luteum
  157. Orchid fleck virus
  158. orchid fly USE Eurytoma orchidearum
  159. Orchidaceae
  160. Orchidales USE Asparagales
  161. orchidectomy USE castration
  162. Orchidophilus
  163. Orchidophilus peregrinator
  164. orchids USE Orchidaceae
  165. orchiectomy USE castration
  166. Orchis
  167. Orchis latifolia USE Dactylorhiza majalis
  168. Orchis morio
  169. orchitis
  170. Orchopeas
  171. ordinances, local USE laws and regulations
  172. Oreamnos
  173. Orectolobiformes
  174. oregano
  175. Oregon
  176. Oregon ash USE Fraxinus latifolia
  177. Oregon fir sawyer USE Monochamus scutellatus oregonensis
  178. Oregon grape holly USE Mahonia repens
  179. Oregon white oak USE Quercus garryana
  180. Oregon wireworm USE Melanotus longulus oregonensis
  181. Orenia
  182. Orenia marismortui
  183. Orenia salinaria
  184. Orenia sivashensis
  185. Oreocalamus USE Chimonobambusa
  186. Oreocarya celosioides USE Cryptantha celosioides
  187. Oreochromis
  188. Oreochromis aureus
  189. Oreochromis mossambicus
  190. Oreochromis niloticus
  191. Oreochromis niloticus niloticus USE Oreochromis niloticus
  192. Oreonana
  193. Oreophysa
  194. Oreopoa USE Poa
  195. Oreosyce USE Cucumis
  196. orf (disease) USE contagious ecthyma
  197. ORF (genetics) USE open reading frames
  198. Orf virus
  199. organ culture
  200. organ meats