Definition of high-graded in English:

high-graded

adjective

  • High-grade.

adjective

North American
Mining
  • Designating ore, especially high-grade gold ore, which has been stolen from a mine. Now historical.

Origin

Mid 19th century; earliest use found in Farmer's Monthly Visitor. From high + grade + -ed<br>1930s; earliest use found in Nevada State Journal. From high-grade + -ed.

Pronunciation

high-graded

/ˌhʌɪˈɡreɪdɪd/