mammillary adjective. ['mamɪlǝri] Also (earlier) mamillary. LME.
[formed as MAMILLA + -ARY²: alt. to -mm- by assim. to MAMMARY.]
1. a. Breast-shaped; of the form of a dome or rounded cone; mammiform. LME.
mammillary body [Latin corpus mamillare] either of a pair of small rounded structures on the ventral surface of the hypothalamus in vertebrates.
b. Chiefly Mineralogy. Having several smoothly rounded convex surfaces; botryoidal. E19.

2. Of or pertaining to the nipple or (formerly) the breast. M17.

► Only in isolated use before E17, translating Latin mamillare.

[TahlilGaran] English Dictionary ▲