rumination vs manduction

rumination and manduction both are nouns.

Word	Noun	Adjective	Verb	Adverb
rumination	Yes	No	No	No
manduction	Yes	No	No	No

As nouns, manduction is a hypernym of rumination; that is, manduction is a word with a broader meaning than rumination:

rumination: (of ruminants) chewing (the cud)
manduction: biting and grinding food in your mouth so it becomes soft enough to swallow

Other hypernyms of rumination include chew, chewing, mastication.

rumination (noun)	manduction (noun)
regurgitation of small amounts of food; seen in some infants after feeding	biting and grinding food in your mouth so it becomes soft enough to swallow
(of ruminants) chewing (the cud)	the act of participating in the celebration of the Eucharist
a calm, lengthy, intent consideration