spoken, not written
taken in by the mouth
"an oral tradition"
"an oral agreement"
"oral hygiene"
"an oral thermometer"
"an oral vaccine"
"the oral cavity"
"the oral mucous membrane"
"the oral surface of a starfish"
Fragments preserved by oral tradition.
出自: H. Belloc
Information..derived from oral sources only was..fragmentary.
出自: H. A. L. Fisher