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Definition of 'oral'


  1. an examination conducted by word of mouth
       Synonyms: oral exam oral examination viva voce viva


  1. using speech rather than writing; "an oral tradition"; "an oral agreement"
       Synonyms: unwritten
  2. of or relating to or affecting or for use in the mouth; "oral hygiene"; "an oral thermometer"; "an oral vaccine"
  3. of or involving the mouth or mouth region or the surface on which the mouth is located; "the oral cavity"; "the oral mucous membrane"; "the oral surface of a starfish"
       Antonyms: aboral
  4. a stage in psychosexual development when the child's interest is concentrated in the mouth; fixation at this stage is said to result in dependence, selfishness, and aggression
       Antonyms: anal anal retentive

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