cud
n.— «Major Die Breaks are often referred to as “cuds,” a slang holdover term from the 1960s that stuck. A cud occurs when a section of the die face and corresponding shank breaks away and leaves a void in the die in its place. The die will then strike coins with a raised blob of unstruck metal that has been partially forced up into the void during the strike.» —“Errors Found in Search” by Ken Potter Numismaster.com July 10, 2008. (source: Double-Tongued Dictionary)
Further reading
In the 15th century, the word respair meant “to have hope again.” Although this word fell out of use, it’s among dozens collected in a new book of soothing vocabulary for troubled times. Plus, baseball slang: If a batter...
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...