1 Grammar the part of a sentence or clause containing a verb and stating something about the subject (e.g. went home in John went home).
2 Logic something which is affirmed or denied concerning an argument of a proposition.
1 Grammar & Logic state, affirm, or assert (something) about the subject of a sentence or an argument of a proposition:a word which predicates something about its subjectaggression is predicated of those who act aggressively
declare or affirm (something) as true or existing; postulate or assert:the Pleistocene colonization of Tasmania has long been predicated
2 (predicate something on/upon) found or base something on:the theory of structure on which later chemistry was predicated