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Definition of truncation

truncation

/trʌŋˈkeɪ.ʃən/
trun · ca · tion

Plural:truncations
•
Adjective:truncational
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truncation Lexical Profile

truncation Game Scores & Validity

• noun

1

The act or process of shortening something by cutting off the top or the end, or the state of being so shortened.

Example

"The sudden truncation of the concert tour disappointed thousands of fans who had already purchased tickets."


2

In mathematics and computing, the dropping of digits of a number or characters of a string beyond a certain point without rounding.

Example

"Integer division in many programming languages performs truncation toward zero rather than rounding to the nearest whole number."


3

In geometry and crystallography, the replacement of an edge or vertex of a polyhedron or crystal by a plane face.

Example

"The cuboctahedron can be formed through the uniform truncation of the vertices of a standard cube."

Synonyms
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Antonyms
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• Rhymes for truncation

Word Origin & Etymology

Borrowed from Late Latin truncatio, a noun of action from Latin truncare ('to maim or cut off'), derived from truncus ('maimed, mutilated', and as a noun, 'the trunk of a tree').

Cite this Entry


Wordmom. (2026). Definition of Truncation. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/truncation
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