Adjective
1. using speech rather than writing;
"an oral tradition""an oral agreement"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"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