emaciation vs bonyness

emaciation and bonyness both are nouns.

Word	Noun	Adjective	Verb	Adverb
emaciation	Yes	No	No	No
bonyness	Yes	No	No	No

As nouns, emaciation and bonyness are synonyms defined as:

emaciation and bonyness: extreme leanness (usually caused by starvation or disease)

Other synonyms of emaciation include boniness, gauntness, maceration.

emaciation (noun)	bonyness (noun)
extreme leanness (usually caused by starvation or disease)	extreme leanness (usually caused by starvation or disease)