Bleeding edge

//ˈbliː.dɪŋ ɛd͡ʒ// noun

Definitions

Noun
  1. 1
    The situation produced when the image extends beyond the nominal margin.
  2. 2
    Something too new and untested to be reliable or to have any assurance of safety; the figurative place where such things exist. idiomatic

    "on the bleeding edge (of something)"

Etymology

Blend of bleed + leading edge, and metaphorically alluding to the cutting edge (“forefront or position of greatest advancement in some field”) as a double-edged sword.

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