push the envelope

EnglishEdit

EtymologyEdit

  • From the boundary line on a graph of an aircraft's capabilities, especially those of height and speed.
  • push + the + envelope

VerbEdit

push the envelope

  1. (intransitive, idiomatic) to go beyond established limits; to pioneer.
    They pushed the envelope on pricing derivatives.
Last modified on 18 June 2013, at 18:04