catabolism vs dissimilation

catabolism and dissimilation both are nouns.

Word	Noun	Adjective	Verb	Adverb
catabolism	Yes	No	No	No
dissimilation	Yes	No	No	No

As nouns, catabolism and dissimilation are synonyms defined as:

catabolism and dissimilation: breakdown in living organisms of more complex substances into simpler ones together with release of energy

Other synonyms of catabolism include destructive metabolism, katabolism.

catabolism (noun)	dissimilation (noun)
breakdown in living organisms of more complex substances into simpler ones together with release of energy	breakdown in living organisms of more complex substances into simpler ones together with release of energy
	a linguistic process by which one of two similar sounds in a word becomes less like the other