Artificial intelligent assistant

explicator

ˈexplicator Obs. rare.
  Also 7 explicater.
  [a. L. explicātor, f. explicāre: see explicate v.]
  An expounder, explainer.

1677 Hale Prim. Orig. Man. i. i. 10 The Supposition of Epicurus, and his Explicator, Lucretius. 1697 J. Sergeant Solid Philos. 36 The Explicaters of Ideas by Resemblances must be forced.

Oxford English Dictionary

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