1. (noun)oral, oral exam, oral examination, viva voce, viva an examination conducted by spoken communication
2. (adj)oral, unwritten usingspeech rather than writing "an oral tradition"; "an oral agreement"
3. (adj)oral of or relating to or affecting or for use in the mouth "oral hygiene"; "an oral thermometer"; "an oral vaccine"
4. (adj)oral of or involving the mouth or mouthregion or the surface on which the mouth is located "the oral cavity"; "the oral mucous membrane"; "the oral surface of a starfish"