excavator

[eks-kuh-vey-ter]

ex·ca·va·tor

[eks-kuh-vey-ter]
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:
1805–15; excavate + -or2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Excavator is always a great word to know.
So is ort. Does it mean:
a scrap or morsel of food left at a meal.
the offspring of a zebra and a donkey.
Collins
World English Dictionary
excavator (ˈɛkskəˌveɪtə)
 
n
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 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

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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