The Collaborative International Dictionary
Tough-pitch
Tough-pitch \Tough"-pitch`\, n. (Metal.)
The exact state or quality of texture and consistency of well reduced and refined copper.
Copper so reduced; -- called also tough-cake.
Wiktionary
tough-pitch
n. 1 The exact state or quality of texture and consistency of well reduced and refined copper. 2 copper so reduced; called also tough-cake.