See Also: Rockwell(dictionary)
Kent, Rockwell(encyclopedia)
Rockwell Automation(finance)
Rockwell Collins(finance)
Norman Rockwell(dictionary)
Rockwell, Norman(encyclopedia)
Rockwell, Norman(dictionary)
Beans and Bagels (Rockwell)(tourism)
Rockwell Hardness - Golf(gambling)
Rockwell's Neighborhood Grill(tourism)

Rockwell (iou)



Rockwell noun. E20.
[Stanley P. Rockwell, 20th-cent. US metallurgist.]
Rockwell test, a hardness test in which the depth of penetration of the material (usu. a metal) by a steel ball or a diamond cone is measured; Rockwell hardness, relative hardness determined in this way.