Definition of truncate in US English:



[with object]often as adjective truncated
  • 1Shorten (something) by cutting off the top or the end.

    ‘a truncated cone shape’
    ‘discussion was truncated by the arrival of tea’
    • ‘Then it rushed the deal through via an urgency committee which truncated public debate and scrutiny.’
    • ‘It was no accident that Charles often truncated his public speeches.’
    • ‘I've truncated the entries here on the main page after realizing the scroll had reached ridiculous lengths.’
    • ‘So, it was a fairly truncated session, but worth it nonetheless, and we made a pact to repeat it tomorrow.’
    • ‘The floor zone in the porches was truncated by the plow at the far northeast and far southwest corners of the structure basin.’
    • ‘The film is characterised by the fine balance between truncated anecdotes and a nuanced sense of time passing.’
    • ‘Even such truncated performances, however, are thought to evoke cosmic responses such as thunderstorms or strong rain.’
    • ‘The time from the first stage of deepening sleep to REM sleep is truncated.’
    • ‘In all, that made for a fairly truncated day today, but at least I now feel very blithe, and I had two excellent ideas for the book.’
    • ‘However, when I looked today, the same behavior takes place: the link is still truncated.’
    • ‘What happened, though, was that the debate ran eight minutes long, so all of the ensuing commentary was truncated.’
    • ‘Both her parents had had interrupted childhoods, and truncated educations, and were determined their children should not suffer the same fate.’
    • ‘There was a strained pause following that truncated attempt at a sentence.’
    • ‘Spring netting was truncated shortly after peak passage of that species.’
    • ‘Since Wilson died at an early age, the story is necessarily truncated.’
    • ‘For all of these goods, product cycles are truncated by rapid innovation.’
    • ‘Now, that is, at best, an abbreviated and truncated version of what had occurred, is it not?’
    • ‘The speakers praised the deeds of the former Mayor whose second term was truncated by legislative and judicial developments.’
    • ‘All of these plotlines feel like they're truncated from longer films.’
    • ‘It was truncated on its northern fringe by two prehistoric mining pits and on its eastern side by another.’
    shorten, cut, cut short, curtail, dock, prune, trim, lop, abbreviate, telescope
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    1. 1.1Crystallography Replace (an edge or an angle) by a plane, typically so as to make equal angles with the adjacent faces.
      • ‘Internally, grains commonly show concentric compositional zonation, which is truncated at broken grain edges.’
      • ‘Rather, the quartz crystals are cleanly truncated at the contacts, or they wrap themselves around the pyrites.’
      • ‘The thickness of (100) and (200) sectors in truncated single crystals of linear polyethylene grown from dilute n-octane solution at 95 °C was measured by atomic force microscopy (AFM) in tapping mode.’


Botany Zoology
  • (of a leaf, feather, or other part) ending abruptly as if cut off across the base or tip.

    • ‘The cell is oval with a truncate apical region, from which the flagella and haptonema originate.’
    • ‘The dykes and sheets sharply truncate structures in the wall rock gneisses and greenstones, and large (several tens of metres) wall-rock xenoliths may be completely engulfed by the intrusive sheets.’
    • ‘The ends are usually acute or obtuse, but sometimes also fish tail-like, truncate or vague.’
    • ‘Convex, anteriorly truncate glabella tapers forward and is outlined by broad, shallow axial and preglabellar furrows.’


Late 15th century (earlier ( Middle English) as truncation): from Latin truncat- ‘maimed’, from the verb truncare.