focalisation vs focalization

focalisation and focalization both are nouns.

Word	Noun	Adjective	Verb	Adverb
focalisation	Yes	No	No	No
focalization	Yes	No	No	No

As nouns, focalisation and focalization are synonyms defined as:

Other synonyms of focalisation include focusing.

As nouns, focalisation and focalization are synonyms defined as:

focalisation and focalization: the confinement of an infection to a limited area

focalisation (noun)	focalization (noun)
the act of bringing into focus	the act of bringing into focus
the confinement of an infection to a limited area	the confinement of an infection to a limited area