truncation

English

Etymology

From Late Latin truncātiō, from Latin truncāre, past participle truncātus (“to cut off”). By surface analysis, truncate +‎ -ion.

Pronunciation

• IPA^(key): /tɹʌŋˈkeɪʃən/

• Audio (US):

  (file)

Noun

truncation (countable and uncountable, plural truncations)

1. (linguistics) The act of truncating or shortening (for example, words are shortened to form blend words or portmanteaus).
2. (mathematics) The removal of the least significant digits from a decimal number.
3. (geometry) An operation in any dimension that cuts a regular polytope at its vertices, creating a new facet in place of each vertex.

   Hypernym: rectification

   Hyponyms: bitruncation, tritruncation, omnitruncation, cantitruncation, runcitruncation, runcicantitruncation

   Coordinate terms: cantellation, runcination, sterication

Derived terms

• bitruncation
• cantitruncation
• omnitruncation
• runcicantitruncation
• runcitruncation
• tritruncation

Related terms

• truncate
• truncated

Translations

act of truncating

• Bulgarian: скъсяване (bg) n (skǎsjavane), съкращаване (bg) (sǎkraštavane)
• French: troncature (fr) f
• Greek: αποκοπή (el) f (apokopí), περικοπή (el) f (perikopí)
• Hindi: छिन्‍न (chin‍na)
• Japanese: 短縮 (ja) (tansyuku)
• Māori: poronga
• Russian: усече́ние (ru) n (usečénije), уреза́ние (ru) n (urezánije)
• Swedish: avkortning

removal of the least significant digits from a decimal number

• Bulgarian: закръгляване n (zakrǎgljavane)
• Greek: αποκοπή (el) f (apokopí)
• Russian: усече́ние (ru) n (usečénije)

replacement of a solid angle by a plane

• Greek: κολόβωση (el) f (kolóvosi)
• Russian: усече́ние (ru) n (usečénije)

Further reading

• “truncation”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “truncation”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.