immobilisation vs immobilization

immobilisation and immobilization both are nouns.

Word	Noun	Adjective	Verb	Adverb
immobilisation	Yes	No	No	No
immobilization	Yes	No	No	No

As nouns, immobilisation and immobilization are synonyms defined as:

immobilisation and immobilization: the act of limiting movement or making incapable of movement

Other synonyms of immobilisation include immobilizing.

As nouns, immobilisation and immobilization are synonyms defined as:

immobilisation and immobilization: fixation (as by a plaster cast) of a body part in order to promote proper healing

immobilisation (noun)	immobilization (noun)
the act of limiting movement or making incapable of movement	the act of limiting movement or making incapable of movement
fixation (as by a plaster cast) of a body part in order to promote proper healing	fixation (as by a plaster cast) of a body part in order to promote proper healing