Dictionary.com
Thesaurus.com
Showing results for diamond drill. Search instead for Diamond+Drilling.

diamond drill

American  

noun

  1. a drill having a hollow, cylindrical bit set with diamonds, used for obtaining cores of rock samples.


Etymology

Origin of diamond drill

First recorded in 1820–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

If these tools aren’t enough, you can also use an electric drill with a diamond drill bit.

From Slate • Nov. 8, 2016

To do it, Clinton would need a sharpened hammer or diamond drill, time, and determination.

From Slate • Nov. 8, 2016

More technological advances, including the diamond drill, electric rail and steam shovel, ushered in a new era of industrial-scale lead mining in southeast Missouri.

From MSNBC • Jun. 22, 2016

At week's end, under a crisp, blue sky, a couple of dozen Madelinot workmen stood around with mining engineers and newsmen to watch a diamond drill bite into the cocoa-colored rock.

From Time Magazine Archive

They found, incredibly, the cylindrical core of a diamond drill.

From "The Incredible Journey" by Sheila Burnford

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "diamond drill" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com