mammillate
adjective
mam·mil·late
ˈmaməˌlāt
variants or mammillated or mamillated
-ātə̇d 
or less commonly mamillate -āt
-ātə̇d
1
: having nipples or small protuberances like nipples
2
a
: having the form of a bluntly rounded protuberance
b
usually mammillated : 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
C. A. Cotton
Word History
Etymology
Late Latin mammillatus, mamillatus, from Latin mammilla, mamilla breast, nipple + -atus -ate, -ated
First Known Use
1741, in the meaning defined at sense 1