Also, buhr. a protruding, ragged edge raised on the surface of metal during drilling, shearing, punching, or engraving. a rough or irregular protuberance on any object, as on a tree. a small, hand-held, power-driven milling cutter, used by machinists and die makers for deepening, widening, or undercutting small recesses. a lump of brick fused or […]
any of several porcupinefishes of the genus Chilomycterus, covered with short, immovable spines.
burstone. any of various siliceous rocks used for millstones. a millstone of such material. noun a variant spelling of buhrstone noun a variant spelling of buhrstone