immobilization vs immobilizing

immobilization and immobilizing both are nouns.

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

As nouns, immobilization and immobilizing are synonyms defined as:

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

Other synonyms of immobilization include immobilisation.

immobilization (noun)	immobilizing (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