rumination

名词 rumination:

1. a calm lengthy intent consideration
   同义词：contemplation, reflection, reflexion, musing, thoughtfulness
2. (of ruminants) chewing (the cud)
3. regurgitation of small amounts of food; seen in some infants after feeding

ru.mi.na.tion

n.（名词）
The act of pondering; meditation.
沉思；思考
The act or process of chewing cud.
反刍，倒嚼：反刍的行为或过程