Artificial intelligent assistant

stibial

ˈstibial, a. Obs. rare—1.
  [ad. mod.L. stibiāl-is: see stibi-um and -al1.]
  Having the qualities of antimony, antimonial.

1666 G. Harvey Morbus Angl. xv. (1672) 33 An adust Stibial or æruginous Sulphur.

Oxford English Dictionary

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