#egression__egress__emergence  the act of coming (or going) out; becoming apparent
  supertype:  #deed__feat__effort__exploit  a notable achievement: "he performed a great deed"; "the book was her finest effort"
  subtype:  #surfacing  emerging to the surface and becoming apparent
  subtype:  #emission.egression__emanation  the act of emitting
     subtype:  #radiation.action  the act of radiating
        subtype:  #bombardment  the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays)
     subtype:  #venting__discharge  the act of venting

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