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excavator

[eks-kuh-vey-ter] /ˈɛks kəˌveɪ tər/
noun
1.
a person or thing that excavates.
2.
a power-driven machine for digging, moving, or transporting loose gravel, sand, or soil.
3.
a sharp, spoonlike instrument used for scraping out diseased tissue, as in dentistry.
Origin
1805-1815
1805-15; excavate + -or2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for excavator
  • On a good day, an experienced fossil excavator might uncover only a few inches of skeleton.
  • When it comes to hauling up the bounty, sophisticated deepwater excavator bots are still expensive to purchase outright.
  • It turns out that there are only one or two types of key for many models of hydraulic excavator.
  • He felt that he had to go ahead, knowing that if he delayed he might not get the excavator for weeks.
British Dictionary definitions for excavator

excavator

/ˈɛkskəˌveɪtə/
noun
1.
a powered machine for digging earth, gravel, sand, etc, esp a caterpillar tractor so equipped
2.
any person, animal, or thing that excavates
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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excavator in Medicine

excavator ex·ca·va·tor (ěk'skə-vā'tər)
n.
An instrument, such as a sharp spoon or curette, used in scraping out pathological tissue.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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