lingua vs glossa

lingua and glossa both are nouns.

Word	Noun	Adjective	Verb	Adverb
lingua	Yes	No	No	No
glossa	Yes	No	No	No

As nouns, lingua and glossa are synonyms defined as:

lingua and glossa: a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity

Other synonyms of lingua include clapper, tongue.

lingua (noun)	glossa (noun)
a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity	a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity