WordWeb Online

1. A calm, lengthy, intent consideration
   - contemplation, reflection, reflexion [Brit], musing, thoughtfulness
    
2. (of ruminants) chewing (the cud)
   "ruminants have remarkable powers of rumination"
    
3. Regurgitation of small amounts of food; seen in some infants after feeding

Derived forms: ruminations

Type of: chew, chewing, consideration, disgorgement, emesis, manduction, mastication, puking, regurgitation, vomit, vomiting

Encyclopedia: Rumination