Siyini isilwane esincelisayo?
Isilwane esincelisayo siyisilwane esinomgogodla esinegazi elifudumele esihlukaniswa ngokuba nezindlala zobisi nezinwele. Ngokuvamile izilwane ezincelisayo zizala izingane eziphilayo ezidinga usizo lwabazali bazo ukuze ziphile. Amanye amaqiniso athakazelisayo ahlanganisa la, (1) amalulwane awukuphela kwezilwane ezincelisayo ezindizayo, futhi (2) nemikhomo eluhlaza okwesibhakabhaka, okuyizilwane ezinkulu kunazo zonke emhlabeni, nayo ingamalulwane.