[ra.ti.o.ci.nate] vi -nat.ed ; -nat.ing [L ratiocinatus, pp. of ratiocinari to reckon, fr. ratio + -cinari (as in vaticinari to prophesy)--more at vaticinate] (1643): reason -- ra.ti.o.ci.na.tor n
RATIOCINATE
Meaning of RATIOCINATE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012