ritual vs manduction

ritual and manduction both are nouns.

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

As nouns, manduction is a hyponym of ritual; that is, manduction is a word with a more specific, narrower meaning than ritual:

ritual (noun)	manduction (noun)
any customary observance or practice	biting and grinding food in your mouth so it becomes soft enough to swallow
the prescribed procedure for conducting religious ceremonies	the act of participating in the celebration of the Eucharist
stereotyped behavior

ritual (adjective)	manduction (adjective)
of or relating to or employed in social rites or rituals
of or relating to or characteristic of religious rituals