tatru -tat- gismu

x1 is a/the breast/mammary/teat [body-part] of x2; [metaphor: projection providing liquid].

Nipple (= tatyji'o). See also ladru, mabru.


In notes:

ladru
x1 is made of/contains/is a quantity of milk from source x2; (adjective:) x1 is lactic/dairy.
mabru
x1 is a mammal/'animal'/beast of species x2.
remyladru
l1 is human breast milk/mother's milk from human r1.
tatyji'o
t1=j1 a nipple/teat (mammary papilla) of t2.
datro
x1 (event) is dated/pertaining to day/occurring on day x2 of month x3 of year x4 in calendar x5
supso
x1 is a/the nipple/papilla [body-part] of x2.