"rumination" in the noun sense
1. contemplation, reflection, reflexion, rumination, musing, thoughtfulness
a calm, lengthy, intent consideration
2. rumination
of ruminants) chewing (the cud
"ruminants have remarkable powers of rumination"
3. rumination
regurgitation of small amounts of food seen in some infants after feeding
Source: WordNet® (An amazing lexical database of English)
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