mammilla
n 1: the small projection of a mammary gland [syn: {nipple},
{mammilla}, {mamilla}, {pap}, {teat}, {tit}]
Mammilla \Mam*mil"la\, n.; pl. {Mammilae}. [L., dim. of mamma a
breast.] (Anat.)
The nipple.
[1913 Webster]