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Webster 1913 Edition
Acroamatical
{
Acˊro-a-mat′ic
,Acˊro-a-mat′ic-al
, }Adj.
[Gr. [GREEK], fr. [GREEK] to hear.]
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.