ruminate

Short definition from Wiktionary

Verb

1. 1
   To chew cud. (Said of ruminants.) Involves regurgitating partially digested food from the rumen.
2. 2
   To meditate or reflect.
3. 3
   To meditate or ponder over; to muse on.

Adjective

1. 1
   Having a hard albumen penetrated by irregular channels filled with softer matter, as the nutmeg and the seeds of the North American papaw.