immobilization

noun

im·​mo·​bi·​li·​za·​tion

variants also British immobilisation

im-ˌō-bə-lə-ˈzā-shən 

: the act of immobilizing or state of being immobilized: as

a

: quiet rest in bed for a prolonged period used in the treatment of disease (as tuberculosis)

b

: fixation (as by a plaster cast) of a body part usually to promote healing in normal structural relation