ethics panel vs ethics committee

ethics panel and ethics committee both are nouns.

Word	Noun	Adjective	Verb	Adverb
ethics panel	Yes	No	No	No
ethics committee	Yes	No	No	No

As nouns, ethics panel and ethics committee are synonyms defined as:

ethics panel and ethics committee: a committee appointed to consider ethical issues

ethics panel (noun)	ethics committee (noun)
a committee appointed to consider ethical issues	a committee appointed to consider ethical issues