mam·​mil·​late | \ ˈmaməˌlāt\
variants: or mammillated \ -​ātə̇d \ or less commonly mamillate \ -​āt \ or mamillated \ -​ātə̇d \

Definition of mammillate

1 : having nipples or small protuberances like nipples
2a : having the form of a bluntly rounded protuberance
b : having a hummocky rock surface with many smoothly rounded knobs or mounds formed especially as a result of glacial erosion the mammillated variety of glaciated surface— C. A. Cotton

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First Known Use of mammillate

1741, in the meaning defined at sense 1

History and Etymology for mammillate

Late Latin mammillatus, mamillatus, from Latin mammilla, mamilla breast, nipple + -atus -ate, -ated

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The first known use of mammillate was in 1741

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