catabiosis vs senescence

catabiosis and senescence both are nouns.

Word	Noun	Adjective	Verb	Adverb
catabiosis	Yes	No	No	No
senescence	Yes	No	No	No

As nouns, senescence is a hypernym of catabiosis; that is, senescence is a word with a broader meaning than catabiosis:

catabiosis: normal aging of cells
senescence: the organic process of growing older and showing the effects of increasing age

Other hypernyms of catabiosis include ageing, aging.

catabiosis (noun)	senescence (noun)
normal aging of cells	the property characteristic of old age
	the organic process of growing older and showing the effects of increasing age