To make small or fine; reduce to minute particles or to a fine powder by breaking, pounding, braying, rasping, or grinding; pulverize; triturate, levigate.
the GNU version of the Collaborative International Dictionary of English
transitive verb.
To reduce to minute particles, or to a fine powder; to pulverize; to triturate; to grind.
verb.
To cause fragmentation of bone, an intense skullfracture.
verb.
To break into smaller portions.
noun.pulverized material
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
verb.
reduce to small pieces or particles by pounding or abrading
Word Usage
"For here again it is because the mouth fails to perform its office and fails even more completely-for birds have no teeth at all, nor any instrument whatsoever with which to comminute or grind down their food-it is,"