truncation

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

• IPA^(key): /tɹʌŋˈkeɪʃən/

• Audio (US):

  (file)

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

• “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.