tunica vs tunic

tunica and tunic both are nouns.

Word	Noun	Adjective	Verb	Adverb
tunica	Yes	No	No	No
tunic	Yes	No	No	No

As nouns, tunica and tunic are synonyms defined as:

tunica and tunic: an enveloping or covering membrane or layer of body tissue

Other synonyms of tunica include adventitia.

tunica (noun)	tunic (noun)
an enveloping or covering membrane or layer of body tissue	any of a variety of loose fitting cloaks extending to the hips or knees
	an enveloping or covering membrane or layer of body tissue