rotary drill


Definition of rotary drill

: a rock drill that bores by a rotary action

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of rotary drill

1860, in the meaning defined above

Learn More About rotary drill

Time Traveler for rotary drill

Time Traveler

The first known use of rotary drill was in 1860

See more words from the same year

Dictionary Entries Near rotary drill

rotary discard

rotary drill

rotary engine

See More Nearby Entries 

Statistics for rotary drill

Cite this Entry

“Rotary drill.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!