comminutor

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comminution

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From comminute +‎ -or.

comminutor (plural comminutors)

(engineering) A type of machine that grinds up solid materials, especially in waste treatment
- 1988 February 12, Harold Henderson, “A Better Glass of Water”, in Chicago Reader‎, archived from the original on 5 March 2016:
  First, underground pipes carry used water away from the hotels and offices and into a king-size garbage grinder (comminutor), two parallel screws whose threads are knife blades big enough and strong enough to mince any solids into tiny pieces.