ethanoyl radical vs acetyl group

ethanoyl radical and acetyl group both are nouns.

Word	Noun	Adjective	Verb	Adverb
ethanoyl radical	Yes	No	No	No
acetyl group	Yes	No	No	No

As nouns, ethanoyl radical and acetyl group are synonyms defined as:

ethanoyl radical and acetyl group: the organic group of acetic acid (CH3CO-)

Other synonyms of ethanoyl radical include acetyl, acetyl radical, ethanoyl group.

ethanoyl radical (noun)	acetyl group (noun)
the organic group of acetic acid (CH3CO-)	the organic group of acetic acid (CH3CO-)