noun (n)

• the property of being truncated or short(noun.attribute)

  Synonym:
  shortness
  

  source: wordnet30
• the replacement of an edge or solid angle (as in cutting a gemstone) by a plane (especially by a plane that is equally inclined to the adjacent faces)(noun.act)

  source: wordnet30
• the act of cutting short(noun.act)

  Example:
  It is an obvious truncation of the verse.
  They were sentenced to a truncation of their limbs.
  

  source: wordnet30
• The act of truncating, lopping, or cutting off.(noun)

  source: webster1913