Definition of oraculum in English:
oraculum
noun əˈrakjʊləmɒˈrakjʊləmɔːˈrakjʊləm
rare Origin
Late Middle English; earliest use found in John Lydgate (c1370–c1449), poet and prior of Hatfield Regis. From classical Latin ōrāculum oracle; in post-classical Latin in sense 2.