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Webster 1828 Edition

Adj.

[Gr. to hear.]

Abstruse; pertaining to deep learning; an epithet applied to the secret doctrines of Aristotle.

acroamatic ‎(comparative more acroamatic, superlative most acroamatic)

Of or related to esoteric knowledge transmitted orally, particularly (historical) applied to the teachings of Aristotle intended only for his disciples as opposed to the exoteric doctrines declaimed in public.
Of or related to lectures.
- 2015, Nils F. Schott, "A Mother to All" in Love and Forgiveness for a More Just World, p. 108, n. 45:
  [Questions] employment here does not mark a shift from the acroamatic (lecture-based) to the erotematic (interrogatory) method, for the answers are not known.