wheelswarf

Century Dictionary and Cyclopedia

1. n. The material worn off the surface of a grindstone and that of the articles which are being ground in the manufacture of all kinds of cutlery, especially at Sheffield, England. It consists of silicious particles mixed with those of more or less oxidized steel-Wheel-swarf is used in the manufacture of blister-steel, the surface of the last layer of charcoal in the cementation pot being coated with it; this, when heated, partly fuses, and forms an air-tight covering to the charcoal and bars of iron beneath.

Wiktionary

1. n. swarf (grit worn away by grinding)

GNU Webster's 1913

1. n. See swarf.