Artificial intelligent assistant

abradant

abradant, a. and n. U.S.
  (əˈbreɪdənt)
  [f. abrade v. + -ant1.]
  A. adj. = abrading ppl. a. (Cent. Dict. 1889). B. n. An abradant substance.

a 1877 Knight Dict. Mech. 247/1 Bath-brick, a fine silicious material, found in the vicinity of Bath, England, compacted into the form of bricks, and used as an abradant.

Oxford English Dictionary

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