sterility
  不毛,不孕,內容貧乏
  ste·ril·i·ty /stəˈrɪlətɪ/ 名詞
  不育,不孕,無菌,無結果,不稔性,不實性,不育性,瘠(性)
  Ste·ril·i·ty n.
  1. The quality or condition of being sterile.
  2. Biol. Quality of being sterile; infecundity; also, the state of being free from germs or spores.
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  sterility
       n 1: (of non-living objects) the state of being free of
            pathogenic organisms [syn: asepsis, antisepsis, sterileness]
       2: the state of being unable to produce offspring; in a woman
          it is an inability to conceive; in a man it is an
          inability to impregnate [syn: infertility] [ant: fertility]