obliteration

[uh-blit-uh-rey-shuhn]
noun
1.
the act of obliterating or the state of being obliterated.
2.
Pathology, Surgery. the removal of a part as a result of disease or surgery.

Origin:
1650–60; < Latin oblitterātiōn- (stem of oblitterātiō), equivalent to oblitterāt(us) (see obliterate) + -iōn- -ion

obliterative [uh-blit-uh-rey-tiv, -er-uh-tiv] , adjective
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World English Dictionary
obliterate (əˈblɪtəˌreɪt)
 
vb
(tr) to destroy every trace of; wipe out completely
 
[C16: from Latin oblitterāre to erase, from ob- out + littera letter]
 
oblite'ration
 
n
 
o'bliterative
 
adj
 
o'bliterator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

obliteration
1650s, from L.L. obliterationem, noun of action from obliterare (see obliterate).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Obliteration of the sutures of the vault of the skull takes place as age advances.
The optic stalk is converted into the optic nerve by the obliteration of its cavity and the growth of nerve fibers into it.
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