comminute UK /ˈkɒ.mɪ.njuːt/US /ˈkɑ.mɪ.njuːt/verb 3noun 1forms 3 verb3 •To break into smaller portions. •To pulverize; to smash.High temperatures required for reaction between components can result in loss of volatile oxides, while milling may not comminute powders sufficiently for complete reaction to occur on calcination. — 1991 •To cause fragmentation (of bone).In the past, there have been controversies over the use of bone graft in comminuted fractures of the forearm. — 2011 noun1 •Pulverized material.The drink contains lemon comminute. formscomminuted · comminuting · comminutes