tympanic membrane vs eardrum

tympanic membrane and eardrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
tympanic membrane	Yes	No	No	No
eardrum	Yes	No	No	No

As nouns, tympanic membrane and eardrum are synonyms defined as:

tympanic membrane and eardrum: the membrane in the ear that vibrates to sound

Other synonyms of tympanic membrane include myringa, tympanum.

tympanic membrane (noun)	eardrum (noun)
the membrane in the ear that vibrates to sound	the membrane in the ear that vibrates to sound