ethyl vs ethyl group

ethyl and ethyl group both are nouns.

Word	Noun	Adjective	Verb	Adverb
ethyl	Yes	No	No	No
ethyl group	Yes	No	No	No

As nouns, ethyl and ethyl group are synonyms defined as:

ethyl and ethyl group: the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom

Other synonyms of ethyl include ethyl radical.

ethyl (noun)	ethyl group (noun)
the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom	the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom