- of excellent or superior quality.
- (of ore) yielding a relatively large amount of the metal for which it is mined.
- to steal (rich ore) from a mine.
Origin of high-grade
First recorded in 1875–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for high-grade
But no one in his camp was prepared for the high-grade vitriol his latest movie summoned.Tom Cruise's Failed Comeback
June 28, 2010
The ten sacks of high-grade ore had been stolen during the night!The Boys of Crawford's Basin
Sidford F. Hamp
It is a high-grade package coffee, whereas Ariosa is popular-priced.All About Coffee
William H. Ukers
These men all thought they knew something about high-grade feeble-mindedness.
The real problem is: Has he had experience with this high-grade type?
Not one of them had had experience with the high-grade type.