decomposition vs breakdown

decomposition and breakdown both are nouns.

Word	Noun	Adjective	Verb	Adverb
decomposition	Yes	No	No	No
breakdown	Yes	No	No	No

As nouns, decomposition and breakdown are synonyms defined as:

decomposition and breakdown: (biology) the process of decay caused by bacterial or fungal action

Other synonyms of decomposition include putrefaction, rot, rotting.

As nouns, decomposition and breakdown are synonyms defined as:

decomposition and breakdown: (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance

Other synonyms of decomposition include chemical decomposition reaction, decomposition reaction.

decomposition (noun)	breakdown (noun)
the analysis of a vector field	the act of disrupting an established order so it fails to continue
the organic phenomenon of rotting	an analysis into mutually exclusive categories
(biology) the process of decay caused by bacterial or fungal action	a cessation of normal operation
(chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance	(biology) the process of decay caused by bacterial or fungal action
in a decomposed state	(chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance
	a mental or physical breakdown