acetyl vs ethanoyl group

acetyl and ethanoyl group both are nouns.

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

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

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

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