comminute \com"minute\, v. t. imp.  p. p. comminuted; p.
   pr.  vb. n. comminuting. l. comminutus, p. p. of
   comminuere to comminute; com- + minuere to lessen. see
   minute.
   to reduce to minute particles, or to a fine powder; to
   pulverize; to triturate; to grind; as, to comminute chalk or
   bones; to comminute food with the teeth. --pennant.
   1913 webster

   comminuted fracture. see under fracture.
      1913 webster
see also:
comminuted comminuting minute comminuted fracture fracture