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Combining form: ortho-
  1. (physics) of any molecule in which the two nuclei have parallel spin
     
  2. (chemistry) in isomeric benzene derivatives, having the two substituents in adjacent positions (compare meta- and para-)
     
  3. (chemistry) having an extra proportion of water
     
  4. Straight, right, proper

Encyclopedia: Ortho-

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orrisroot
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ortanique
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Ortega y Gasset
orthicon
Orthilia
ortho-
orthoboric acid
orthocenter
orthocentre
orthochorea
orthochromatic
orthochromatic film
orthoclase
orthodontia
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