Definition of mammilliform in US English:

mammilliform

(also mamilliform)

adjective

  • Shaped like or resembling a mamilla; nipple-shaped.

Origin

Mid 19th century; earliest use found in History of the Berwickshire Naturalists' Club. From mamilla + -iform, perhaps after post-classical Latin mamilliformis.

Pronunciation

mammilliform

/maˈmɪlɪfɔːm/