1.foundational assumptions that serve as the basis for developing further theories or proofs. "perhaps the postulate of Babylonian influence on Greek astronomy is incorrect"
2.suggest or assume the existence, fact, or truth of (something) as a basis for reasoning, discussion, or belief. "his theory postulated a rotatory movement for hurricanes"
3.nominate or elect (someone) to an religious office subject to the sanction(permit) of a higher authority.
"the chapter was then allowed to postulate the bishop of Bath"