#opacity.quality__opaqueness  the quality of being opaque to a degree; the degree to which something reduces the passage of light
  exclusion:  #uncloudedness
  supertype:  #quality  an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare
  subtype:  #murkiness__cloudiness__muddiness__muddines  the quality of being cloudy
     subtype:  #turbidity__turbidness  muddiness created by stirring up sediment or having foreign particles suspended
     subtype:  #mistiness__mistines__hazines  cloudiness resulting from haze or mist
  subtype:  #indistinctness__blurriness__fogginess__foggines__fuzzines  the quality of being indistinct
     subtype:  #dimness__dimnes__faintnes  the quality of being dim

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