plica vs vocal band

plica and vocal band both are nouns.

Word	Noun	Adjective	Verb	Adverb
plica	Yes	No	No	No
vocal band	Yes	No	No	No

As nouns, vocal band is a hyponym of plica; that is, vocal band is a word with a more specific, narrower meaning than plica:

plica: a folded part (as in skin or muscle)
vocal band: either of two pairs of folds of mucous membrane projecting into the larynx

Other hyponyms of plica include epicanthic fold, epicanthus, plica vocalis, vocal cord, vocal fold, ruga, tentorium.

plica (noun)	vocal band (noun)
a folded part (as in skin or muscle)	either of two pairs of folds of mucous membrane projecting into the larynx