terminating abruptly by having or as if having an end or point cut off
<adj.all> a truncate leaf truncated volcanic mountains a truncated pyramid
Truncate \Trun"cate\, v. t. [imp. & p. p. {Truncated}; p. pr. & vb. n. {Truncating}.] [L. truncatus, p. p. of truncare to cut off, mutilate, fr. truncus maimed, mutilated, cut short. See {Trunk}.] To cut off; to lop; to maim.
Truncate \Trun"cate\, a. [L. truncatus, p. p. ] Appearing as if cut off at the tip; as, a truncate leaf or feather.