#impermeability__impermeableness  the property of something that cannot be pervaded by a liquid
  exclusion:  #permeability
  supertype:  #solidity.consistency__solidness__solidnes  the consistency of a solid
  subtype:  #retentivity__retentiveness__retentivenes  the power of retaining liquid: "moisture retentivity of soil"
     subtype:  #urinary_retention__urinaryretention  holding urine in the urinary bladder; "he has a problem with urinary retention"
  subtype:  #impenetrability__imperviousnes  resistance to penetration by a liquid
  subtype:  #nonabsorbency  the property of not being absorbent

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