Rumination

Part of speech: noun (n.)

1. The act or process of ruminating, or chewing the cud; the habit of chewing the cud. Rumination is given to animals to enable them at once to lay up a great store of food, and afterward to chew it. Arbuthnot.

2. The state of being disposed to ruminate or ponder; deliberate meditation or reflection. Retiring full of rumination sad. Thomson.

3. The regurgitation of food from the stomach after it has been swallowed, -- occasionally oberved as a morbid phenomenon in man.