#defect.imperfection__fault__flaw  an imperfection in a device or machine; "if there are any defects you should send it back to the manufacturer"
  supertype:  imperfection__imperfectness__imperfectnes  the state or an instance of being imperfect
  subtype:  glitch__bug  a fault or defect in a system or machine
  subtype:  hole.defect  a fault; "he shot holes in my argument"

No statement uses or specializes defect.imperfection; click here to add one.