ˌrad.ēˈōs ə nˌāt, -ashē-, -atē-, -ēˈäs-, usu -ād.+V intransitive verb
( -ed/-ing/-s )
Etymology: Latin ratiocinatus, past participle of ratiocinari to reckon, deliberate, consider, from ratio reason, computation, reasoning
: to reason discursively or according to a logical process