deletion

noun

de·​le·​tion di-ˈlē-shən 

dē-

1

: the act of deleting

2

a

: something deleted

b(1)

: the absence of a section of genetic material from a gene or chromosome

(2)

: the mutational process that results in a deletion

Synonyms of deletion

• omission

Examples of deletion in a Sentence

one of the deletions from the final cut of the movie turned out to be my one line of dialogue

Recent Examples on the Web

The agreement specifically provides that the deletion of a Component is a Material Change, and Material Changes require City approval. — Sara Tenenbaum, CBS News, 12 Aug. 2026

Voters should be very wary of the myriad changes and deletions resulting from these charter proposals. — Joseph Landers, Baltimore Sun, 6 Aug. 2026

Clear deletion policies will become important for employees and visitors who appear on camera. — Kurt Knutsson, FOXNews.com, 6 Aug. 2026

Because of the randomness of some of these things and complexities like deletions, many of the individual inferences about history will be wrong. — ArsTechnica, 31 July 2026

Word History

Etymology

Latin deletion-, deletio destruction, from delēre

First Known Use

1590, in the meaning defined at sense 1

Rhymes for deletion

• accretion
• completion
• concretion
• depletion
• excretion
• repletion
• secretion
• carburetion
• grecian
• hypersecretion

Medical Definition

deletion

noun

de·​le·​tion di-ˈlē-shən 

1

: the absence of a section of genetic material from a gene or chromosome

2

: the mutational process that results in a deletion