ethanoyl radical vs ethanoyl group

ethanoyl radical and ethanoyl group both are nouns.

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

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

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

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

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