ecdysiast vs performer

ecdysiast and performer both are nouns.

Word	Noun	Adjective	Verb	Adverb
ecdysiast	Yes	No	No	No
performer	Yes	No	No	No

As nouns, performer is a hypernym of ecdysiast; that is, performer is a word with a broader meaning than ecdysiast:

ecdysiast: a performer who provides erotic entertainment by undressing to music
performer: an entertainer who performs a dramatic or musical work for an audience

Other hypernyms of ecdysiast include performing artist.

ecdysiast (noun)	performer (noun)
a performer who provides erotic entertainment by undressing to music	an entertainer who performs a dramatic or musical work for an audience