n.1 a a place at which advice or prophecy was sought from the gods in classical antiquity. b the usu. ambiguous or obscure response given at an oracle. c a prophet or prophetess at an oracle.
2 a a person or thing regarded as an infallible guide to future action etc. b a saying etc. regarded as infallible guidance.
3 divine inspiration or revelation.
4 (Oracle) Brit. propr. a teletext service provided by Independent Television.
Etymology: ME f. OF f. L oraculum f. orare speak