digestive vs digestion

digestive and digestion both are nouns.

Word	Noun	Adjective	Verb	Adverb
digestive	Yes	Yes	No	No
digestion	Yes	No	No	No

digestive (noun)	digestion (noun)
any substance that promotes digestion	learning and coming to understand ideas and information
	the organic process by which food is converted into substances that can be absorbed into the body
	the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat

digestive (adjective)	digestion (adjective)
relating to or having the power to cause or promote digestion