vocal fold vs plica vocalis

vocal fold and plica vocalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
vocal fold	Yes	No	No	No
plica vocalis	Yes	No	No	No

As nouns, vocal fold and plica vocalis are synonyms defined as:

vocal fold and plica vocalis: either of two pairs of folds of mucous membrane projecting into the larynx

Other synonyms of vocal fold include vocal band, vocal cord.

vocal fold (noun)	plica vocalis (noun)
either of two pairs of folds of mucous membrane projecting into the larynx	either of two pairs of folds of mucous membrane projecting into the larynx