acroamatical
a. வாய் மொழியான, எழுத்தில்வராத, மறையுரையான.
Ac`ro*a*mat"ic, Ac`ro*a*mat"ic*al, a. Etym: [Gr. Defn: Communicated orally; oral; -- applied to the esoteric teachings of Aristotle, those intended for his genuine disciples, in distinction from his exoteric doctrines, which were adapted to outsiders or the public generally. Hence: Abstruse; profound.