Webster's Revised Unabridged Dictionary · 1913

Milled

Milled (mild) , adjective

1.
Having been subjected to some process of milling.
2.
Having multiple fine grooves on the rim, in the direction from obverse to reverse; -- of coins. Coins of silver and gold were milled to make it impossible for uncrupulous persons to shave small pieces from the edge without detection.
Collocations (2)
Milled cloth , cloth that has been beaten in a fulling mill.
Milled lead , lead rolled into sheets.