BULLETIN n. 3 definitions
A periodical publication, especially one containing the proceeding of a society. Bulletin board, a board on which announcements are put, particularly at newsrooms, newspaper offices, etc.
BURR n.
r shaping metal, as in turning, engraving, pressing, etc.; also, the rough neck left on a bullet in casting. The graver, in plowing furrows in the surface of the copper, raises corresponding ridges or burrs. Tomlinson.
LEAD n.
s both malleable and ductile, though with little tenacity, and is used for tubes, sheets, bullets, etc. Its specific gravity is 11.37. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic weight, 206.4. Symbol Pb (L. Plumbum). It is chiefly obtained from the minera…