mammilla vs mamilla

mammilla and mamilla both are nouns.

Word	Noun	Adjective	Verb	Adverb
mammilla	Yes	No	No	No
mamilla	Yes	No	No	No

As nouns, mammilla and mamilla are synonyms defined as:

Other synonyms of mammilla include nipple, pap, teat, tit.

mammilla (noun)	mamilla (noun)
the small projection of a mammary gland	the small projection of a mammary gland