eardrum vs tympanic membrane

eardrum and tympanic membrane both are nouns.

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

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

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

Other synonyms of eardrum include myringa, tympanum.

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