The Collaborative International Dictionary of English v.0.48:

Cultivation \Cul`ti*va"tion\ (k?l`t?-v?"sh?n), n. [Cf. F.
   cultivation.]
   1. The art or act of cultivating; improvement for
      agricultural purposes or by agricultural processes;
      tillage; production by tillage.
      [1913 Webster]

   2. Bestowal of time or attention for self-improvement or for
      the benefit of others; fostering care.
      [1913 Webster]

   3. The state of being cultivated; advancement in physical,
      intellectual, or moral condition; refinement; culture.
      [1913 Webster]

            Italy . . . was but imperfectly reduced to
            cultivation before the irruption of the barbarians.
                                                  --Hallam.
      [1913 Webster]

WordNet (r) 3.0 (2006):

cultivation
    n 1: socialization through training and education to develop
         one's mind or manners; "her cultivation was remarkable"
    2: (agriculture) production of food by preparing the land to
       grow crops (especially on a large scale)
    3: a highly developed state of perfection; having a flawless or
       impeccable quality; "they performed with great polish"; "I
       admired the exquisite refinement of his prose"; "almost an
       inspiration which gives to all work that finish which is
       almost art"--Joseph Conrad [syn: polish, refinement,
       culture, cultivation, finish]
    4: the process of fostering the growth of something; "the
       cultivation of bees for honey"
    5: the act of raising or growing plants (especially on a large
       scale)