- of, relating to, or resembling a mammilla.
Origin of mammillary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for mammillary
These geodes, on breaking, often present a mammillary surface.
These are of a circular and mammillary form: they are strewed thickly, like little islets, approximating to each other.
It occurs in mammillary rounded masses, with a fibrous structure, and a dull metallic lustre.Geology
A considerable number of the prehistoric dress-fasteners, known as mammillary fibulæ, have been discovered in Ireland.Jewellery
H. Clifford Smith,
Locality near Adelaide, now showing gold freely in mammillary and dendroidal form.Getting Gold
J. C. F. Johnson