ethanoyl group vs ethanoyl radical

ethanoyl group and ethanoyl radical both are nouns.

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

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

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

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

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