Source : Webster's Revised Unabridged Dictionary (1913)

Sterility \Ste*ril"i*ty\, n. [L. sterilitas: cf. F.
   st['e]rilit['e].]
   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.

Source : WordNet®

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}]