Source : Webster's Revised Unabridged Dictionary (1913)

Focalization \Fo`cal*i*za"tion\, n.
   The act of focalizing or bringing to a focus, or the state of
   being focalized.

Source : WordNet®

focalization
     n 1: the confinement of an infection to a limited area [syn: {focalisation}]
     2: the act of bringing into focus [syn: {focalisation}, {focusing}]