The Collaborative International Dictionary of English v.0.48:

Infertility \In`fer*til"i*ty\, n. [L. infertilitas: cf. F.
   infertilit['e].]
   The state or quality of being infertile; unproductiveness;
   barrenness.
   [1913 Webster]

         The infertility or noxiousness of the soil. --Sir M.
                                                  Hale.
   [1913 Webster]

WordNet (r) 3.0 (2006):

infertility
    n 1: 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: sterility, infertility] [ant:
         fecundity, fertility]