acetyl radical vs ethanoyl group

acetyl radical and ethanoyl group both are nouns.

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

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

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

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

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