Artificial intelligent assistant

mesencephalic

mesencephalic, a. Anat.
  (mɛsɛnsɪˈfælɪk)
  [f. mesencephalon + -ic. Cf. cephalic.]
  Pertaining to or connected with the mesencephalon.

1854 Owen Skel. & Teeth in Circ. Sci I. Org. Nat. 193 The mesencephalic vertebra. 1880 Gunther Fishes 86 Mesencephalic arch.

Oxford English Dictionary

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