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deletion

[dih-lee-shuh n] /dɪˈli ʃən/
noun
1.
an act or instance of deleting.
2.
the state of being deleted.
3.
a deleted word, passage, etc.
4.
Genetics. a type of chromosomal aberration in which a segment of the chromosome is removed or lost.
Origin
1580-1590
1580-90; < Latin dēlētiōn- (stem of dēlētiō) a destroying, equivalent to dēlēt(us) (see delete) + -iōn- -ion
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin and History for deletions

deletion

n.

1580s, from Latin deletionem (nominative deletio), noun of action from past participle stem of delere (see delete).

Online Etymology Dictionary, © 2010 Douglas Harper
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deletions in Medicine

deletion de·le·tion (dĭ-lē'shən)
n.
Loss, as from mutation, of one or more nucleotides from a chromosome.

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