Definition of truncate in English:


Line breaks: trun|cate


Pronunciation: /trʌŋˈkeɪt
, ˈtrʌŋ-/
[with object]
  • 2 Crystallography Replace (an edge or an angle) by a plane, typically so as to make equal angles with the adjacent faces.
    More example sentences
    • 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.


Pronunciation: /ˈtrʌŋkeɪt
Botany & Zoology Back to top  
  • (Of a leaf, feather, or other part) ending abruptly as if cut off across the base or tip.
    More example sentences
    • 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.
    • The cell is oval with a truncate apical region, from which the flagella and haptonema originate.



Pronunciation: /-ˈkeɪʃ(ə)n/
More example sentences
  • But then the papers were summaries, they were truncations, densely-packed contextualisers that served little purpose other than to inspire questions.
  • The Chinese and English versions are truncations with a significant number of lines being omitted.
  • Different R5 sequences at the 5’ junctions correspond to truncations of the element with the top sequence in corresponding to a full-length element.


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

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elaborate ornamentation of a vocal melody