shortened by or as if by having a part cut off; cut short: an unnecessarily truncated essay.
(of a geometric figure or solid) having the apex, vertex, or end cut off by a plane: a truncated cone or pyramid.
Crystallography. (of a crystal) having corners, angles, or edges cut off or replaced by a single plane.
Biology. truncate(def 4).
Prosody. (of a line of verse) lacking at the beginning or end one or more unstressed syllables needed to fill out the metrical pattern.

Origin of truncated

First recorded in 1480–90; truncate + -ed2
Related formssub·trun·cat·ed, adjective



verb (used with object), trun·cat·ed, trun·cat·ing.

to shorten by cutting off a part; cut short: Truncate detailed explanations.
Mathematics, Computers. to shorten (a number) by dropping a digit or digits: The numbers 1.4142 and 1.4987 can both be truncated to 1.4.


  1. square or broad at the end, as if cut off transversely.
  2. lacking the apex, as certain spiral shells.

Origin of truncate

1480–90; < Latin truncātus (past participle of truncāre to lop), equivalent to trunc(us) trunk + -ātus -ate1
Related formstrun·cate·ly, adverbsub·trun·cate, adjective

Synonyms for truncate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for truncated

Contemporary Examples of truncated

Historical Examples of truncated

British Dictionary definitions for truncated



maths (of a cone, pyramid, prism, etc) having an apex or end removed by a plane intersection that is usually nonparallel to the base
(of a crystal) having edges or corners cut off
shortened by or as if by cutting off; truncate


verb (trʌŋˈkeɪt, ˈtrʌŋkeɪt)

(tr) to shorten by cutting off a part, end, or top

adjective (ˈtrʌŋkeɪt)

cut short; truncated
biology having a blunt end, as though cut off at the tipa truncate leaf
Derived Formstruncately, adverbtruncation, noun

Word Origin for truncate

C15: from Latin truncāre to lop
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for truncated

late 15c., past participle adjective from truncate. Originally in heraldry; modern senses are post-1700.



late 15c., from Latin truncatus "cut off," past participle of truncare "to maim, cut off," from truncus "mutilated, cut off" (see trunk). Related: Truncated; truncating.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for truncated




To shorten by or as if by cutting off, especially by cutting across at right angles to the long axis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.